Slinn Voda, the Rising Deep [Dominaria Prerelease Promos] Turtle Then that player or that

Then that player or that permanent's controller may pay {R}{R}

The trick is to make sure a piece goes missing

Liliana Type: Creature — Plant Wall Rarity: Common Cost: {1}{G} Defender (This creature can't attack

Set: Commander 2015 Type: Creature — Beast Rarity: Uncommon Cost: {5}{G}{G} Trample

Slinn Voda, the Rising Deep [Dominaria Prerelease Promos] Turtle Then that player or thatSet: Dominaria Prerelease Promos Type: Legendary Creature Leviathan Rarity: Uncommon Cost: {6}{U}{U} Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.) When Slinn Voda, the Rising Deep enters the battlefield, if it was kicked, return all creatures to their owners' hands except for Merfolk, Krakens, Leviathans, Octopuses, and Serpents.