Ertai's Familiar [Weatherlight] Odyssey Set: Innistrad Type: Legendary Creature

Set: Innistrad Type: Legendary Creature — Spirit Cleric Rarity: Mythic Cost: {1}{W}{U} Hexproof (This creature can't be the target of spells or abilities your opponents control

"In the death of the foe lies the resurrection of the faithful

Set: Urza's Saga Type: Creature — Hippo Rarity: Uncommon Cost: {3}{G} Islandwalk (This creature can't be blocked as long as defending player controls an Island

Whenever Midnight Entourage or another Aetherborn you control dies

If anything refers to your library

Ertai's Familiar [Weatherlight] Odyssey Set: Innistrad Type: Legendary CreatureSet: Weatherlight Type: Creature Illusion Rarity: Rare Cost: {1}{U} Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.) When Ertai's Familiar phases out or leaves the battlefield, mill three cards. {U}: Until your next upkeep, Ertai's Familiar can't phase out.