Katsuhito exhales a series of dancing rings of prismatic vapors in a 90-foot line that is 10 feet wide.
Each creature in the area must succeed on a DC 23 Constitution saving throw or be Poisoned for the next minute. While Poisoned in this way, a creature has it's movement speed and weapon damage reduced by half, cannot concentrate, and repeats this saving throw at the end of each of its turns, ending the effect on a success.