The Big Sludge Slime is a foe in Epic Battle Fantasy 4. It appears primarily in the Waste Disposal Plant and is a member of the Big Slime enemy class.


Big Sludge Slimes have transparent black bodies. Much like the other Big Slimes, they have smaller blobs of slime clustered around the main body. They also have all kinds of junk sticking out from their bodies, including metal pieces and barrels of toxic waste.


Despite being a bigger version of the Sludge Slime, the Big Sludge Slime has no Bomb abilities. Instead, it uses (and absorbs) Dark and Poison attacks, with the latter being especially lethal since it is capable of inflicting Poison on everyone in the battle, allowing the Big Sludge Slime to heal itself. Luckily, this can be circumvented with a Syphon, as Big Sludge Slimes can only use basic physical attacks when Syphoned. However, as with all Slimes, the Big Sludge Slime's physical attack has a small chance to get players Slimed.

In terms of weakness, Big Sludge Slimes are most weak to Holy, but is also considerably weak to Fire, Thunder, and - ironically - Bomb. Aside from absorbing Poison and Dark, they are immune to Earth and resist Water.


Icon bestiary ebf4 big sludge slime Big Sludge Slime EBF4
A huge version of the Sludge Slime. Uses poison and dark attacks. Has low evade.
Stat HP Stat Attack Stat Defence Stat Magic Stat Mdef Stat Accuracy Stat Evade Exp AP SP Gold Hit2HP
460 6 4 6 4 4 2.5 60 10 10 50 20
Element Fire Element Thunder Element Ice Element Earth Element Poison Element Bomb Element Wind Element Water Element Holy Element Dark
-60% -60% - 100% 200% -60% - 50% -100% 200%
Status Burn Status Stun Status Freeze Status Tired Status Poison Status Dispel Status Stagger Status Syphon Status Wet Status Weaken Status Curse Status Death
- - -80% - - - - - - -100% - -
StatDown Attack StatDown Magic StatDown Defence StatDown Mdef StatDown Accuracy StatDown Evade
- - - - - -
Item Drop Rate
Icon Item Gunpowder Item Hand Bomb Item Bio Virus Item Bottled Darkness - - -
Name Gunpowder Hand Bomb Bio Virus Bottled Darkness - - -
Chance 80% 100% 50% 20% - - -
Status Damage
Damage taken from status effects, in % of maximum health (per turn), including elemental resistances:
Status Burn Burn Status Poison Poison Status Doom Doom
(if Death fails)
Status Regen Regen
4.48% -1.2% per stack,
up to -10.8%
10% -13.(3)%
Final damage is randomized by ±5% (except for Doom) and rounded down.

On Hard and Epic difficulties, enters the battle with 9x Status Poison Poison, effectively regenerating each turn.

Attacks and Abilities

Attack List
Attack Target Power Type Element Status Effect Acc Crit RdF
Body Slam Single 36 Stat Attack ---- 30% 2x Status Slimed 100% 10% 10%
Notes: On Hard and Epic difficulties, status chance is increased to 60%.
Dark Cloud All 13 Stat Magic 100% Element Dark 80% 20% StatDown Accuracy 100% 10% 30%
Toxic Fountain All 24 Stat Magic 100% Element Poison 50% 2x Status Poison 100% 10% 20%
Fountain v2 Allies 16 Stat Magic 100% Element Poison 50% 2x Status Poison 100% 10% 20%

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.

  • Berserked or/and Syphoned → Body Slam;
  • Otherwise → Body Slam (1/4), Dark Cloud (1/4), Toxic Fountain (1/4), Fountain v2 (1/4).
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