Ath, Gilded Harbinger

+1: Exile target creature with converted mana cost of X, where X is the number of loyalty counters on Ath, Gilded Harbinger
+1: Exile creature you control, you gain life equal to that creatures converted mana cost
-9: Return all creatures exiled by Ath, Gilded Harbinger to the battlefield under your control. Except they are now blue illusions.