5e Spell: Power Word Madness

Power Word Madness
7th-level enchantment Casting Time: 1 action Range: 60 feet Components: V Duration: Instantaneous

You speak a word of power that can overwhelm the mind of one creature you can see within range, leaving it dumbfounded. If the target has 150 hit points or fewer, it either becomes insane or you can choose an obsession or phobia to inflict for 1d10 hours. Otherwise, the spell has no effect.

The insane target must make a Wisdom saving throw at the end of each of its turns. On a successful save, the insane condition ends.