Disrupt

1 Ki point - 1 min - A Creature you touch must make Charisma saving throws. Whenever a target that fails this saving throw makes an attack roll or a saving throw before the spell ends, the target must roll a d4 and subtract the number rolled from the attack roll or saving throw. At the end of each of its turns, the target can make a Charisma saving throw. On a success, the spell ends