Illirew, the Sanctified

Flying, vigilance
Whenever you cast an instant or sorcery, distribute X +1/+1 counters among Illirew, the Sanctified and Clerics you control, where X is
that spell's converted mana cost.
Remove seven +1/+1 counters from among Clerics you control: Return Illirew from your graveyard or exile to the battlefield.