Xiao, the last Yakshas

—Whenever you cast a white spell, create a 1/1
white Aranara creature token.
—Whenever you cast a blue spell, scry 2.
—Whenever you cast a red spell, Xiao deals
3 damage to target opponent.
{line}Whenever you cast a green spell, target
creature gets +4/+4 until end of turn.