This article's content is accurate to the most recent public game version, 0.4.8d.
"[5 Turns] Creates an illusion to partially hide the caster. Greatly reduces the chance of suffering attacks."
Cost: 6 MP
Source: Equipping the Insanity Core.
Misdirection is a spell that applies a buff to the user for five turns that significantly lowers the chance of being targeted for attacks.
Given the effects of this spell, the Insanity Core is better used on someone with lower defenses and/or lower HP like Alice. Alternatively, Misdirection can be used in pair with Infernal Bloodlust to reduce the latter's drawbacks.