Mirrorpool [Oath of the Gatewatch Prerelease Promos] Scars of Mirrodin Prerelease Promos put it into its owner's

put it into its owner's hand instead of into that player's graveyard

"Yawgmoth's corpse is a wound in the universe

the chosen creatures attack if able

−7: You control target player during that player's next turn

Mirrorpool [Oath of the Gatewatch Prerelease Promos] Scars of Mirrodin Prerelease Promos put it into its owner'sSet: 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.