Fighting Energy is a consumable in Fiend Folio, a mod for The Binding of Isaac.

Inflicts all enemies in the room with the Berserk effect for 4 seconds.

Enemies under the Berserk effect turn bright red, and appear with a red mark over their head.

Berserked enemies cannot be killed, unless they are the last enemy alive in the room.

Berserked enemies are 25% faster.

Berserked enemies receive 50% more damage from any source, and deal a full heart of damage to Isaac. They can also deal damage to other enemies (both contact and projectile damage), increased by 50% of their usual amount.

Even enemies that don't normally deal contact damage will be able to deal contact damage to other enemies, but not to Isaac.

The following special synergies and interactions for Fighting Energy have been documented.

* Note that not all possible synergies and interactions are listed here.

The following sounds are related to this consumable.

• Check out the consumable description on the mod's external Wiki.
• Download Fiend Folio from the Steam Workshop.