Red Hydra

Red Hydra is a demon found in Iris and the Giant.

"This hydra's jaws will reduce my maximum Will."

Location
The Red Hydra can appear as both a boss and not. The non-boss variant does not count towards the Game Book.

In Path of the Ferryman the boss variant can be found on Floor 17 as a group of 16 in Easy & Classic difficulty and a group of 20 in Nightmare difficulty, and also on Floor 24 as a group of 4 in Easy & Classic difficulty and a group of 5 in Nightmare difficulty.

The non-boss variant can be found on Floors 9, 14 & 23 in Path of the Ferryman.

Strategy
The Red Hydra can attack you from the first or second row dealing 2 damage to your maximum Will. When attacked, it will appear decapitated and be unable to attack you. It must be attacked again to be defeated, however if your turn ends it can regenerate. It takes 2 turns for the Red Hydra to fully regenerate (or 4 on Easy difficulty), any attack before then will kill it regardless of the stage of regeneration.

The Thunder card's multiple enemy targeting will not work on the Red Hydra. Having multiple Axe or Fire cards is recommended for taking them down quickly.