Mirrorpool [Oath of the Gatewatch Prerelease Promos] Cockatrice Set: Duels of the Planeswalkers

Set: Duels of the Planeswalkers Promos 2013 Type: Creature — Sliver Rarity: Rare Cost: {3}{W} Sliver creatures you control have double strike

though of separate ancestry

Set: Beta Edition Type: Creature — Rat Rarity: Common Cost: {2}{B} Plague Rats's power and toughness are each equal to the number of creatures named Plague Rats on the battlefield

" —Squee

Set: Vanguard Series Type: Vanguard Rarity: Rare Creatures you control have vigilance

Mirrorpool [Oath of the Gatewatch Prerelease Promos] Cockatrice Set: Duels of the PlaneswalkersSet: Oath of the Gatewatch Prerelease Promos Type: Land Rarity: Mythic Mirrorpool enters the battlefield tapped. {T}: Add {C}. {2}{C}, {T}, Sacrifice Mirrorpool: Copy target instant or sorcery spell you control. You may choose new targets for the copy. {4}{C}, {T}, Sacrifice Mirrorpool: Create a token that's a copy of target creature you control.