Leonin Arbiter [The List] Dinosaur Cat Nightmare As long as you have

As long as you have 7 or more life

and the Rift Era

Set: Throne of Eldraine Prerelease Promos Type: Creature — Faerie Rogue Rarity: Mythic Cost: {1}{U}{U} Flash

you may sacrifice a Merfolk

Set: Commander 2015 Type: Land Rarity: Uncommon Vivid Creek enters the battlefield tapped with two charge counters on it

Leonin Arbiter [The List] Dinosaur Cat Nightmare As long as you haveSet: The List Type: Creature Cat Cleric Rarity: Rare Cost: {1}{W} Players can't search libraries. Any player may pay {2} for that player to ignore this effect until end of turn. Our people are torn by infighting. Until the two sides reconcile, our laws can carry no meaning.