"Keep killing it until it dies"
―"Zombie Hydra" medal description, EBF2

The Zombie Hydra is a boss in Epic Battle Fantasy 2 and 5, and an optional boss in Epic Battle Fantasy 4 since the Battle Mountain update.

Appearance

The Zombie Hydra appears as a skeletal dragon with two, three or four heads; as with most multi-part enemies, each head counts as a separate foe, but the lore treats them as the appendages of a single being. Each head has two large horns on the back of its skull, huge jaws full of sharp teeth, a long neck dotted with large spines, and numerous smaller spines on its skull. Certain attacks reveal that it also has a large tail that ends in a massive bone spike.

In EBF4, the Zombie Hydra has been completely redrawn; more notable changes include being white instead of off-white and the horns being merged with the skull into a single structure. Its heads can now be severed from their necks, leaving them floating in the air as an orb of red light appears in the skull.

Overview

In all appearances, the Zombie Hydra mainly favors powerful physical attacks and Dark magic, with later games giving it some Fire magic as well. Its signature ability allows it to revive its heads when their HP is depleted - only by slaying all of its heads at once (or in quick succession) can this be averted. Every head has identical stats and abilities, besides any changes (such as via debuffs) that happen during the battle.

Epic Battle Fantasy 2

A two-headed Zombie Hydra is the penultimate boss of the game, appearing in Wave 19. It has a balanced set of attacks, including physical, magical, and status-based assaults, as well as Grim Reaper — the proto-Instant Death spell which deals over 99999 damage to one of the players if it hits, being guaranteed to kill them. Its physical damage output and use of Grim Reaper will likely get the player into the habit of using Auto-Revive, which is extremely helpful for the rest of the game.

Epic Battle Fantasy 4

The Zombie Hydra is located in the western tomb of Graybone Cemetery, surrounded by red clouds that can only be crossed with the Winged Boots. Unlike most optional bosses, there is no reward for killing it apart from the enormous amounts of experience and ability points accumulated from its reviving heads (while said to be revived, each new head increased the reward pool as if it was another enemy), and as such can be fought as an experience farm.

Unlike many returning bosses, the Zombie Hydra has undergone significant changes in appearance and abilities. It has three heads instead of two (likely to compensate for the increased player headcount), can cast Fire spells, and now has twice as many Instant Death abilities. Each head can also deal enormous physical damage, being capable of killing one of the players at full health if caught off guard. Additionally, if any of the heads suffers a powerful attack, it will detach from its spinal cord, permanently increasing its Evade by 50%.

Much like its EBF2 counterpart, the Zombie Hydra is able to regenerate its fallen heads, with the specific condition of each head "charging" its revival skill on its next turn after a head has been destroyed. This means that the party has to kill all of its heads within two turns to prevent them from reviving each other.

A four-headed Zombie Hydra appears as the final opponent of Battle Mountain's Miniboss Marathon. Due to a coding error, the first head to be destroyed will never be revived; the other heads revive each other normally.

Epic Battle Fantasy 5

Two Zombie Hydras appear near the end of the game. A two-headed specimen appears in a cave in The Rapture, guarding the Earth Orb. A three-headed specimen appears in The Beyond, blocking the passageway to the final boss screen.

The Zombie Hydra looks and acts similarly to its EBF4 version, but it now has new attacks, including Gravity Surge, Screamer, and Sacrifice. Its Tail Crush has slightly more accuracy and The Reaper now does noticeable damage when the Instant Death doesn’t happen; on the other hand, Triple Bite can now only be used when decapitated, Berserked, or Syphoned, Tail Crush’s accuracy is no longer increased on Hard or Epic, and The Reaper has less accuracy overall. Once again, each head will passively "charge" a revival ability when another head is destroyed, requiring all of them to be killed in the span of two turns.

Defeating the 3-headed Zombie Hydra on Epic difficulty rewards the Triple Death medal.

Statistics

Epic Battle Fantasy 2

It should be noted that HP, Attack and Magic Attack also will be multiplied by the wave modifier. Check Epic Battle Fantasy 2 Foe Waves to see the value of the modifier for a specified wave.

EBF2 Foe Icon Zombie Hydra.png
Zombie Hydra Undead Dragon EBF2
The heads revive each other! Also watch out for instant-death magic.
Statistics
Base Statistics Stat HP.png Stat Attack.png Stat Defence.png Stat Magic.png Stat Mdef.png Eva S. Hit
200000 0.8 1 0.9 1 1x 22000
Elemental
Resistance
Element Fire.png Element Thunder.png Element Ice.png Element Water.png Element Wind.png Element Earth.png Element Poison.png Element Dark.png Element Holy.png Element Bomb.png
-70% - - - - - 50% 50% -60% -
Status
Resistance
Status Poison.png Status Syphon.png Debuff (status) Status Stun.png Status Blind.png StatDown Attack.png StatDown Magic.png StatDown Defence.png StatDown Mdef.png
100% 66.6% 66.6% 66.6% 66.6% 66.6% 66.6% 66.6% 66.6%
(De)buff
Cap
Buffs Debuffs
- 20%
Stealable Item
Icon Max Ether
Name Max Ether


Epic Battle Fantasy 4

Icon bestiary ebf4 zombie hydra.png Zombie Hydra EBF4
Uses dark, fire and instant-death attacks. Summons more Zombie Hydra Heads, when others are killed. Evade increases if decapitated.
Statistics
Base
Statistics
Stat HP.png Stat Attack.png Stat Defence.png Stat Magic.png Stat Mdef.png Stat Accuracy.png Stat Evade.png Exp AP SP Gold Hit2HP
1666 6 4 6 4 4 4 666 25 50 260 8
Elemental
Resistance
Element Fire.png Element Thunder.png Element Ice.png Element Earth.png Element Poison.png Element Bomb.png Element Wind.png Element Water.png Element Holy.png Element Dark.png
-100% - - - 200% - - - -100% 200%
Status
Resistance
Status Burn.png Status Stun.png Status Freeze.png Status Tired.png Status Poison.png Status Dispel.png Status Stagger.png Status Syphon.png Status Wet.png Status Weaken.png Status Curse.png Status Death.png
- 80% 100% - - - - 80% - - - 80%
Debuff
Resistance
StatDown Attack.png StatDown Magic.png StatDown Defence.png StatDown Mdef.png StatDown Accuracy.png StatDown Evade.png
- - - - - -
Item Drop Rate
Icon Solid Spike Bottled Darkness Dark Matter Burger Orange Juice - -
Name Solid Spike Bottled Darkness Dark Matter Burger Orange Juice - -
Chance 100% 20% 10% 10% 10% - -
Status Damage
Damage taken from status effects, in % of maximum health (per turn), including elemental resistances:
Status Burn.png Burn Status Poison.png Poison Status Doom.png Doom
(if Death fails)
Status Regen.png Regen
2.24% -0.48% per stack,
up to -4.32%
4% -5.(3)%
Final damage is randomized by ±5% (except for Doom) and rounded down.

Epic Battle Fantasy 5

EBF5 Foe Icon Zombie Hydra.png
Zombie Hydra EBF5
If you chop off a head, its evade will increase. If you kill a head, the remaining heads will replace it.
Statistics
Base
Statistics
Stat HP.png Stat Attack.png Stat Defence.png Stat Magic.png Stat Mdef.png Stat Accuracy.png Stat Evade.png Exp AP SP Gold Hit2HP Catch
1777 4 4 6 4 4 4.4 333 22 22 200 15 3
Elemental
Resistance
EBF5 Element Fire.png EBF5 Element Thunder.png EBF5 Element Ice.png EBF5 Element Earth.png EBF5 Element Bio.png EBF5 Element Bomb.png EBF5 Element Water.png EBF5 Element Wind.png EBF5 Element Holy.png EBF5 Element Dark.png
-80% - - - 50% - - - -80% 200%
Status
Resistance
EBF5 Status Burn+Scorch.png EBF5 Status Stun.png EBF5 Status Chill+Freeze.png EBF5 Status Poison+Virus.png EBF5 Status Syphon.png EBF5 Status Curse+Bad Luck.png EBF5 Status Stagger+Confuse.png EBF5 Status Wet+Dry.png EBF5 Status Heavy+Light.png EBF5 Status Weak+Tired.png EBF5 Status Dispel.png EBF5 Status Death.png
- 70% 100% - 70% - - - - - - 100%
Debuff
Resistance
EBF5 StatDown HP.png EBF5 StatDown Attack.png EBF5 StatDown Magic.png EBF5 StatDown Defence.png EBF5 StatDown Mdef.png EBF5 StatDown Accuracy.png EBF5 StatDown Evade.png
- 30% 30% 30% 30% 30% 30%
Item Drop Rate
Icon Razor Claw Bone Spike Dark Matter - -
Name Razor Claw Bone Spike Dark Matter - -
Chance 50% 75% 5% - -
Status Damage
Damage taken from status effects, in % of maximum health (per turn), including elemental resistances:
EBF5 Status Burn.png Burn EBF5 Status Scorch.png Scorch EBF5 Status Poison.png Poison EBF5 Status Virus.png Virus EBF5 Status Doom.png Doom
(if Death fails)
EBF5 Status Regenerate.png Regen
1.89% per stack,
up to 17.01%
3.78% per stack,
up to 34.02%
0.45% per stack,
up to 4.05%
0.9% per stack,
up to 8.1%
Immune -10%
Damage taken from first four is decreased by 30% on Easy and 65% on Zero difficulties.
Final damage is randomized by ±5% (except for Doom) and rounded down.

Before the v2 update, had 1555 base HP instead.

Statistics with More Foe Resistance enabled.
EBF5 Foe Icon Zombie Hydra.png
Zombie Hydra EBF5
If you chop off a head, its evade will increase. If you kill a head, the remaining heads will replace it.
Statistics
Base
Statistics
Stat HP.png Stat Attack.png Stat Defence.png Stat Magic.png Stat Mdef.png Stat Accuracy.png Stat Evade.png Exp AP SP Gold Hit2HP Catch
1777 4 4 6 4 4 4.4 333 22 22 200 15 3
Elemental
Resistance
EBF5 Element Fire.png EBF5 Element Thunder.png EBF5 Element Ice.png EBF5 Element Earth.png EBF5 Element Bio.png EBF5 Element Bomb.png EBF5 Element Water.png EBF5 Element Wind.png EBF5 Element Holy.png EBF5 Element Dark.png
200% - - - 200% - - - -80% 200%
Status
Resistance
EBF5 Status Burn+Scorch.png EBF5 Status Stun.png EBF5 Status Chill+Freeze.png EBF5 Status Poison+Virus.png EBF5 Status Syphon.png EBF5 Status Curse+Bad Luck.png EBF5 Status Stagger+Confuse.png EBF5 Status Wet+Dry.png EBF5 Status Heavy+Light.png EBF5 Status Weak+Tired.png EBF5 Status Dispel.png EBF5 Status Death.png
- 70% 100% - 70% - - - - - - 100%
Debuff
Resistance
EBF5 StatDown HP.png EBF5 StatDown Attack.png EBF5 StatDown Magic.png EBF5 StatDown Defence.png EBF5 StatDown Mdef.png EBF5 StatDown Accuracy.png EBF5 StatDown Evade.png
- 30% 30% 30% 30% 30% 30%
Item Drop Rate
Icon Razor Claw Bone Spike Dark Matter - -
Name Razor Claw Bone Spike Dark Matter - -
Chance 50% 75% 5% - -
Status Damage
Damage taken from status effects, in % of maximum health (per turn), including elemental resistances:
EBF5 Status Burn.png Burn EBF5 Status Scorch.png Scorch EBF5 Status Poison.png Poison EBF5 Status Virus.png Virus EBF5 Status Doom.png Doom
(if Death fails)
EBF5 Status Regenerate.png Regen
-1.05% per stack,
up to -9.45%
-2.1% per stack,
up to -18.9%
-0.9% per stack,
up to -8.1%
-1.8% per stack,
up to -16.2%
Immune -10%
Damage taken from first four is decreased by 30% on Easy and 65% on Zero difficulties.
Final damage is randomized by ±5% (except for Doom) and rounded down.

The head detaches when hurt for >25% of maximum health or >5% when it's <32%, which increases its base Evade by 50% and makes it immune to Earth.

Attacks and Abilities

Epic Battle Fantasy 2

Attack List
Attack Target Power Type Element Status Effect Acc RdF
Bite Single 4000 Stat Attack.png ---- 50% 20% StatDown Defence.png 100% 10%
Multi-Bite Single 4000/2
2000
Stat Attack.png ---- -- -- -- 100% 10%
Notes: On Epic difficulty, each time after doing first two bites, has a 66.(6)% chance to loop back and do them again (limit of one loop). Before the EBF Collection update, number of loops was not limited.
Tail Crush Single 8000 Stat Attack.png ---- -- -- -- 60% 10%
The Reaper Single 999+ -- ---- -- -- -- 40% 10%
Notes: 99 999 999 Power, isn't affected by user's Magic Attack, but still affected by target's Magic Defence. On Epic difficulty, accuracy is increased to 120%.
The Dead All 2600 Stat Magic.png 50% Element Poison.png 50% 1x Status Poison.png 120% 10%
Haunt All 800
800
800
800
Stat Magic.png 100% Element Dark.png 60% 20% EBF5 StatDown Attack.png
EBF5 StatDown Magic.png
EBF5 StatDown Defence.png
EBF5 StatDown Mdef.png
120% 10%
Dark Flare All 3000 Stat Magic.png 100% Element Dark.png 30% 3x Status Syphon.png 120% 10%
Revive Dead Head -- -- ---- -- -- -- -- --
Notes: Revival heals health to full and resets any statuses the dead head had. On Epic difficulty, it was supposed to slightly damage both players (2500 magical damage, 120% accuracy) on top of reviving a head, but this damage is never actually applied.

Epic Battle Fantasy 4

Attack List
Attack Target Power Type Element Status Effect Acc Crit RdF
Bite Single 70 Physical ---- -- -- -- 100% 10% 10%
Triple Bite Single 138/3 Physical ---- -- -- -- 100% 10% 10%
Tail Crush Single 180 Physical ---- 100% -- Status Death.png 40% 10% 10%
Notes: On Hard and Epic difficulties, accuracy is increased to 80%. Isn't used once the head detaches.
Hellfire Single 45 Magical 100% Element Fire.png 50% 3x Status Berserk.png 100% 10% 10%
Fire Spin All 45 Magical 100% Element Fire.png 100%
50%
5x
15%
Status Burn.png
StatDown Defence.png
130% 0% 10%
Antimatter Centered 80 Magical 75% Element Dark.png -- -- -- 120% 10% 10%
Grim Reaper Single 30 Physical 50% Element Dark.png 100% -- Status Death.png 40% 10% 10%
Revive Dead head -- -- ---- -- -- -- -- -- --
Notes: Revives a head with full health and clears any (de)buffs and status effects it had, including the Evade boost.
This ability requires a turn to passively "charge" it, separate for each active head. The charge and usage condition is "less than 3 foes are present" — thus, the first head to be slain in the Battle Mountain variant of the battle will stay dead.

Epic Battle Fantasy 5

Attack List
Attack Target Power Type Element Status Effect Acc Crit RdF
Bite Single 100 Physical ---- -- -- -- 100% 10% 10%
Triple Bite Single 200/3 Physical ---- -- -- -- 100% 10% 10%
Notes: Can only be used when decapitated, or when EBF5 Status Syphon.png Syphoned or EBF5 Status Berserk.png Berserked.
Tail Crush Single 250 Physical ---- 100% 1x EBF5 Status Death.png 50% 10% 10%
Notes: Cannot be used while decapitated.
The Reaper Single 120 Physical 100% EBF5 Element Dark.png 100% 1x EBF5 Status Death.png 25% 10% 10%
Fire Spin All 55 Magical 100% EBF5 Element Fire.png 70%
100%
15%
3x
EBF5 StatDown Defence.png
EBF5 Status Burn.png
100% 10% 10%
Hellfire Single 50 Magical 100% EBF5 Element Fire.png 66% 3x EBF5 Status Berserk.png 100% 10% 10%
Notes: Can only be used on Hard or Epic difficulties.
Screamer All 40 Magical 100% EBF5 Element Dark.png 100% 20% EBF5 StatDown Attack.png 200% 10% 10%
Gravity Surge All 30/3 Magical 100% EBF5 Element Dark.png 50% 25% EBF5 StatDown Mdef.png 100% 10% 10%
Antimatter Flux Centered 65/3 Magical 100% EBF5 Element Dark.png 100% 25% EBF5 StatDown Mdef.png 100% 10% 10%
Notes: Added to its movepool in the v2 update.
Sacrifice All 30 Magical 100% EBF5 Element Dark.png 100%
50%
20%
3x
EBF5 StatDown HP.png
EBF5 Status Doom.png
150% 10% 10%
Respawn None -- -- ---- -- -- -- -- -- --
Notes: Spawns a new head with full health to replace a dead one. This ability requires a turn to passively "charge" it after a head has been killed, separate for each alive head. Does not take up the head's action, cannot be used if unable to act due to EBF5 Status Stun.png Stun (or catch score >55 and all players being EBF5 Status Lovable.png Lovable while it's Syphoned). The new head will be at the same level as the user.

Battle Logic

The following describes general logic of the enemy and attack patterns, with chances of each attack to be used. Conditions are listed from highest to lowest priority unless specified otherwise.

Epic Battle Fantasy 2

  • Sealed → Bite (1/3), Multi-Bite (1/3), Tail Crush (1/3);
  • Otherwise → Bite (1/8), Multi-Bite (1/8), Tail Crush (1/8), The Dead (1/8), Dark Flare (1/8), Haunt* (1/8), Grim Reaper (1/8), Revive* (1/8).

* When both heads are alive, Revive becomes Grim Reaper instead.

* Haunt becomes Dark Flare on Easy or Normal difficulties.

Epic Battle Fantasy 4

  • Berserked or/and Syphoned → Triple Bite;
  • Decapitated → Bite (2/8), Triple Bite (2/8), Hellfire (1/8), Fire Spin (1/8), Antimatter (1/8), Grim Reaper (1/8).
  • Normal → Bite (2/8), Tail Crush (2/8), Hellfire (1/8), Fire Spin (1/8), Antimatter (1/8), Grim Reaper (1/8).

Getting hurt for >16% HP in a single hit breaks this head's neck/spinal cord, boosting its base Evade by 50%.

Epic Battle Fantasy 5

Action

  • If Syphoned, catch score >55, and all players are Lovable → Nothing;
  • If catch score >55 and all players are Lovable;
    • <49% HP → Screamer (2/6), Gravity Surge (1/6), Antimatter Flux (1/6), Sacrifice (2/6);
    • Otherwise → Gravity Surge (1/4), Antimatter Flux (1/4) Sacrifice (2/4);
  • If Syphoned or Berserked → Triple Bite;
  • If the head has been decapitated → Bite* (1/2);
    • If playing on Hard or Epic → The Reaper (3/20), Hellfire (1/20), Fire Spin (1/20);
      • <49% HP → Screamer (2/24), Gravity Surge (1/24), Antimatter Flux (1/24), Sacrifice (2/24);
      • Otherwise → Gravity Surge (1/16), Antimatter Flux (1/16), Sacrifice (2/16);
    • Otherwise → The Reaper (3/20), Fire Spin (2/20);
      • <49% HP → Screamer (2/24), Gravity Surge (1/24), Antimatter Flux (1/24), Sacrifice (2/24);
      • Otherwise → Gravity Surge (1/16), Antimatter Flux (1/16), Sacrifice (2/16);
  • Otherwise → Bite (1/4), Tail Crush (1/4);
    • If playing on Hard or Epic → The Reaper (3/20), Hellfire (1/20), Fire Spin (1/20);
      • <49% HP → Screamer (2/24), Gravity Surge (1/24), Antimatter Flux (1/24), Sacrifice (2/24);
      • Otherwise → Gravity Surge (1/16), Antimatter Flux (1/16), Sacrifice (2/16);
    • Otherwise → The Reaper (3/20), Fire Spin (2/20);
      • <49% HP → Screamer (2/24), Gravity Surge (1/24), Antimatter Flux (1/24), Sacrifice (2/24);
      • Otherwise → Gravity Surge (1/16), Antimatter Flux (1/16), Sacrifice (2/16);

* Bite becomes Triple Bite when decapitated and <32% HP.

Before the v2 update, the chance to use Antimatter Flux was taken by Sacrifice instead.

Counter (only if Counter-Attacking Foes is enabled)

  • 25%;
    • If Syphoned or decapitated → Bite;
    • If playing on Hard/Epic → The Reaper (3/5), Hellfire (1/5), Fire Spin (1/5);
    • Otherwise → The Reaper (3/5), Fire Spin (2/5).

Additionally, whenever the number of Hydra heads is lower than what it was at the start of the battle, the Hydra will charge up its Respawn ability and then use it on its next turn (neither the charge or the actual Respawn take up the Zombie Hydra's action). Respawn cannot be used or charged if the Zombie Hydra is unable to act, either due to being Stunned or due to having a Catch Score >55 and all players being Lovable while the Hydra is Syphoned. On Foe Remix, the Zombie Hydra has a 50% chance to summon a Blaze Hydra instead of a Zombie Hydra when using Respawn.

Strategy

Epic Battle Fantasy 2

Don't underestimate the Zombie Hydra's revival ability: if one head is defeated, the other can revive it with full HP on any subsequent turn. Consequently, you must carefully manage the two heads' HP in order to bring them down in rapid succession, preferably in a single turn. This can be complicated by any automatic attack skills equipped by Matt and Natalie.

Defensively, the main concern is the Grim Reaper spell, which can instantly kill either of your characters if it hits, regardless of their health. On higher difficulties, its accuracy becomes dangerously high — if both heads use it simultaneously, the fight can end before it really even begins. Thus, it is advised to keep Auto-Revive up as much as possible (via using Natalie's Revive on a living player, and keeping her Magic Attack buffed up for more health restored upon revival); ideally, you should have a few turns of Auto-Revive left from the previous battle. The Survivor and Angel skill bonuses may help, but they cannot be relied on much.

The boss has a significant and easily-accessible weakness: both Grim Reaper and Revive, along with other magical abilities, can and should be blocked by hitting the heads with Seal (preferably via Rune Blade's Unleash, for guaranteed application), significantly simplifying the fight and removing the need for Barrier and other Magic Defence buffs. Auto-Revive is still welcome, and Protect/Defence buffs become vital to endure the Zombie Hydra's viciously powerful physical attacks.

However, there's still a chance to get a Game Over no matter how you play if you're doing the fight on Epic difficulty. The Zombie Hydra's Multi-Bite can deal massive damage on Epic if you're unlucky, so it can outdamage your healing and revival options if it uses it frequently enough; a possibility that becomes much more likely if most of its skills have been sealed. You can try to Blind the heads to reduce their hit rate, but it's more reliable to destroy one head to halve the boss's damage output. Kyun (Natalie's Limit Break) can be used to create breathing room in a tight situation, though it might be better to save Limit Breaks for the upcoming final boss (as they take longer to charge each time one is used in this game). When one head is down, the battle is basically won — as long as you keep the other head under Syphon, it will not revive the first head or use multi-target attacks, so it shouldn't be too difficult to finish it off.

Before the EBF Collection update, on Epic, the Zombie Hydra was affected by the Dispel handling bug, Dispelling a head on Epic difficulty would decrease its physical strength by ≈11.7% (not stackable with itself) for the whole battle. It paired well with the possibility to restrict the boss to use only physical attacks. This bug only happened on Epic.

Epic Battle Fantasy 4

Preparation

Syphon has become a much riskier strategy, but high resistance to both Dark and Fire will nullify most of Zombie Hydra's magical damage output, possibly enabling players to go without Magic Defence buffs. The rest of the party's equipment should boost Defence and HP as much as possible (without increasing vulnerability to Fire and Dark), since the Hydra's physical damage output is staggeringly high. As one more upgrade from the EBF2 version of the boss, it can now use three (four in the Battle Mountain fight) Instant Death abilities on the same turn — make sure to resist them too, especially since Dark and Death resistances often come in pairs.

Offensively, you may want Fire and Holy-based weapons to exploit the Zombie Hydra's severe weaknesses. If you're worried about setting off their Evade boost, however, you may want to focus on weapons that raise your defenses and relevant elemental resistances. As the Hydra's revival ability can no longer be blocked, the only way to win is to bring the heads to low health and then slay them all in one or two turns before they revive — mind your counterattacks and automatic abilities to avoid killing a head too early. Nuke and Supernova, being quite strong on their own and even stronger due to the Zombie Hydra's Fire weakness, work well for finishing the fight, especially when both are used in a single turn and/or have further boosts from equipment and buffs.

Battle

Even with high Defence and corresponding buffs, the Zombie Hydra's Tail Crush and Triple Bite still deal extreme damage. Your best bet is to buff own Evade (via Guardian, Reflex or/and Energy Drinks) and reduce the heads' Accuracy (via Solar Flare, Sand Dune, Coal Bat summon or/and the Tired status effect) to decrease their hit rate, as well as frequently apply Auto-Revive or/and Morale to guarantee survival if the attack hits, hoping the other heads won't pick off a weakened player.

The Zombie Hydra's high weaknesses to Fire and Holy make it an easy target for spells like Judgement and Eruption. As the greatest non-limit single-target source of Fire damage in the game, Hellfire may seem like an attractive spell, but its chance to inflict Berserk — thereby making the Zombie Hydra's physical attacks even stronger — can be more trouble than it's worth. Powerful single hits also run the risk of severing the heads from their vertebrae, increasing their Evade and giving them access to Triple Bite. This can be prevented by using multi-hit abilities instead, such as Legend with Heaven's Gate or Magma Hammer, as well as Bullet Hell. The Evade boost can also be circumvented with high-Accuracy abilities (such as Judgement), buffing the party's Accuracy, and/or lowering enemy Evade (via Bind and Tired).

If farming for experience, a good idea is to try to keep all the heads at low HP in case the party is starting to get overwhelmed by the Hydra to quickly finish off the fight with a Limit Break. Alternatively, you can switch the difficulty to Easy — it wouldn't impact experience gain, while making the boss' damage output a non-issue.

Epic Battle Fantasy 5

Equipment

The Zombie Hydra wields an array of Dark and Fire attacks, so resistance or immunity to those elements will greatly lower its damage output. It also has two rather inaccurate attacks that inflict Instant Death; if the player does not use Death-resistant equipment, they can also use Bless, Morale, or Auto-Revive to protect themselves. In terms of raw power, the Zombie Hydra's strongest abilities deal physical damage.

In terms of offense, Fire or Holy-elemental weapons are an obvious choice for this battle. The player should have Fire or Holy-elemental Limit Breaks/Summons on standby in order to kill all the Hydra heads at once.

Battle

Regardless of which encounter it is, the Zombie Hydra appears with multiple heads (2 in The Rapture and 3 in The Beyond). As per usual, Hydra heads can be respawned at least one turn after they have been killed. The Zombie Hydra's magical abilities have lower power, but inflict a wide variety of stat debuffs and most of them are aoe. Conversely, the Hydra's physical attacks mostly just deal high damage to a single target.

If the player gets tired of constant stat debuffs, they can Berserk/Syphon the Zombie Hydra to block their magical skills. However, this will cause the Zombie Hydra to spam its incredibly powerful Triple Bite until the status expires. This behavior can be exploited by a Target Tank character with high Defence or the Invisible status to absorb the damage while other players keep the heads Berserked/Syphoned.

The Zombie Hydra is susceptible to Tired, Weaken, and Curse, which should all be exploited to greatly decrease the heads' stats (Curse can also further amplify their Holy weakness in addition to lowering their defences). As with all Hydras, receiving a strong attack may decapitate the heads, greatly increasing their Evade and making them immune to Earth attacks; using multi-hit attacks can mitigate this risk.

Summon

In EBF5, the foe can be captured to be used as a summon. It casts an empowered version of The Reaper against all enemies.

EBF5 Foe Icon Zombie Hydra.png
Zombie Hydra SP Whether the summon cures Freeze from players by forcing them to move (jump off the screen)
Instantly kills all foes, or if that fails, hits them with some physical dark damage. 124 Cured
Target Power Type Element Status Effect Acc Crit RdF
All 100 Physical 100% EBF5 Element Dark.png 200% -- EBF5 Status Death.png 150% 10% 10%
Note: Before the v2 update, cost 144 SP instead.

Trivia

  • The Zombie Hydra likely inspired the Zombie Dragon enemy in Epic Battle Fantasy 3; both creatures have the same sprite and almost all of the same attacks.
    • One of the final enemy encounters in EBF3 is a pair of Zombie Dragons, replicating the original Zombie Hydra battle, minus revival and easy Syphoning.
    • The Zombie Hydra may also have inspired the Pyrohydra boss in EBF3, and in turn the Dragons of later games.
  • The Zombie Hydra's theme in EBF2 is "Twins of Duality".
  • In EBF2, the Zombie Hydra's roars are taken from the eponymous character of the Godzilla film series. Later games would give it a more generic roar.
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