Leviathan [The Dark] Elemental Shaman instead that source deals that

instead that source deals that much damage to you and Eye for an Eye deals that much damage to that source's controller

Set: Commander Anthology Type: Artifact Rare Cost: {3} You may activate abilities of creatures you control as though those creatures had haste

Set: Zendikar Type: Legendary Creature — Angel Mythic Cost: {6}{W}{W}{W} Flying As Iona

Set: Ixalan Promos Type: Land Rare Cost: Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain

Set: Commander Anthology Volume II Type: Creature — Goblin Artificer Rare Cost: {R} {T}: Choose target artifact a player controls and target artifact card in that player's graveyard

Leviathan [The Dark] Elemental Shaman instead that source deals thatSet: The Dark Type: Creature Leviathan 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.)