Color Spray

V, S, M (RYB colored powder or sand)
{t}: Roll 2*[SSL+ 2]d10 for HP pool. Creatures
in a 15-foot cone are affected in order of their current HP from the lowest. Ignore blind and unconscious creatures. If creature's HP is less or equal to remaining HP pool, it is affectred. Subtract this creature's hit points from the HP pool. Affected creatures are blinded for 1 round.