Catharsis

When this creature enters, if WW was spent to cast it, create two 1/1 green and white Kithkin creature tokens. When this creature enters, if RR was spent to cast it, creatures you control get +1/+1 and gain haste until end of turn. Evoke (R/W)(R/W) (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)