Tiriel, Mistress of the Wilds

When Tiriel, Mistress of the Wilds enters the battlefield, if {w}{g} was spent to cast her, destroy target enchantment. If {r}{g} was spent to cast her, destroy target artifact. If {r}{w} was spent to cast her, creatures you control get +1/+1 and gain haste until end of turn. (Do all three if {w}{r}{g} was spent.)