Walrein (48/160) [XY: Primal Clash] 85 Set: Aether Revolt Type: Creature

Set: Aether Revolt Type: Creature — Dwarf Artificer Rarity: Uncommon Cost: {1}{W} {W}

Sacrifice a Bat: Create two 1/1 black Bat creature tokens with flying

Set: Tempest Type: Instant Common Cost: {2}{U} You may tap or untap target artifact

Set: Commander 2017 Type: Legendary Creature — Dragon Avatar Mythic Cost: {4}{W}{U}{B}{R}{G} Eminence — As long as The Ur-Dragon is in the command zone or on the battlefield

but in understanding why ultimate power is self-defeating

Walrein (48/160) [XY: Primal Clash] 85 Set: Aether Revolt Type: CreatureSet: XY: Primal Clash Type: Water Rarity: Rare Retreat cost: Colorless,Colorless,Colorless,Colorless