S'Crow Dust

From the Super Mario Wiki

S'Crow Dust is a status changing magic attack used basically by a few flora inspired enemies in Super Mario RPG: Legend of the Seven Stars. This attack affects only a one member of the Mario's party. When used, the enemy sprays a multi-colored dust to the member that becomes it into a scarecrow. If a member of the party wears a Trueform Pin the attack will not have any effect on them.