Leviathan [The Dark] Vampire Soldier then you may return a

then you may return a creature card from your graveyard to your hand

"Avacyn emerged from the broken Helvault

their bones now rest

−1: Put a card you own with a silver counter on it from exile into your hand

Set: Aether Revolt Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {6} {8}

Leviathan [The Dark] Vampire Soldier then you may return aSet: The Dark Type: Creature Leviathan Rarity: Rare Cost: {5}{U}{U}{U}{U} Trample Leviathan enters the battlefield tapped and doesn't untap during your untap step. At the beginning of your upkeep, you may sacrifice two Islands. If you do, untap Leviathan. Leviathan can't attack unless you sacrifice two Islands. (This cost is paid as attackers are declared.)