Black Hole creates an implosion of pure darkness which expands very rapidly before exploding violently.
Black Hole deals massive Dark damage to all enemies, as well as some recoil damage to the player's team. Black Hole also has a chance to inflict Instant Death to anything on the battlefield.
In EBF4, Dark Natalie can also use Black Hole, without any negative consequence to her side.
Black Hole returns as a Special Skill available for Natalie and Lance. It is technically unlocked at the start of the game, though Natalie is the first character who can learn it.