Arahbo, Roar of the World (Commander 2017) [Commander 2017 Oversized] Standard "We're going to need a

"We're going to need a bigger gate

Set: Eldritch Moon Promos Type: Enchantment Mythic Cost: {5}{U}{U} Whenever an opponent casts their first spell each turn

Sorin had created Avacyn

Set: Amonkhet Prerelease Promos Type: Creature — Cat Rare Cost: {3}{W}{W} Other Cats you control get +1/+1 and have lifelink

Arahbo, Roar of the World (Commander 2017) [Commander 2017 Oversized] Standard "We're going to need aSet: Commander 2017 Oversized Type: Legendary Creature Cat Avatar Mythic Cost: {3}{G}{W} Eminence At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3 +3 until end of turn. Whenever another Cat you control attacks, you may pay {1}{G}{W}. If you do, it gains trample and gets +X +X until end of turn, where X is its power.