Fi, Goddess Sword's Spirit

{2},{t}: Fi, Goddess Sword's Spirit becomes
equipped to target creature until end of turn.
Equipped creature gets +2/+2 and gains
protection from colorless. Activate this ability
only as a sorcery.
Purity {w} - Exile target artifact.
Purity {u} - Draw a card.
Purity {b} - Destroy target creature with power
2 or less.
Purity {r} - Deal 2 damage to any target.
Purity {g} - Destroy target enchantment.