Activation Requirement: The Mangekyō Sharingan feat must be activated to use Tsukuyomi.

Casting: Target a creature within sight and expend 8 Chakra points to cast Tsukuyomi. Chakra can be drawn from ki or health points.

Saving Throw: The target must make a Wisdom saving throw.

Effects: On a failed save, the target becomes frightened and blinded, succumbing to illusory horrors crafted by Tsukuyomi. The initial psychic damage inflicted is 1d10.

Duration: The spell lasts for 2 rounds, during which the afflicted creature suffers the effects of fear and blindness.

Persistence: The illusion persists until the target succeeds on a Wisdom saving throw or until the spell's duration ends.

Additional Damage: At the end of each of the target's turns until the spell ends, it must succeed on a Wisdom saving throw to resist further psychic damage. Failure results in the target suffering 1d10 psychic damage.