Katsu

Katsu (喝 Katsu) is an uncategorized spell.

Description
To use this spell, the user roars the word 'Katsu' towards the target, which is supposed to have a currently unknown effect on it. When Horologium saved Wendy just before this magic reached her, Hades boasted about her being "completely annihilated" by this spell, hinting that it might have such an effect.