Sakashima the Impostor [Saviors of Kamigawa] Will "Such an affliction appears to

"Such an affliction appears to seek out the pure

Set: Shadows over Innistrad Type: Creature — Skeleton Rarity: Common Cost: {B} {2}{B}: Return Sanitarium Skeleton from your graveyard to your hand

Set: Kaladesh Type: Sorcery Rarity: Uncommon Cost: {4}{U} Exchange control of target artifact you control and target artifact or creature you don't control

When Waterspout Elemental enters the battlefield

Set: Fallen Empires Type: Enchantment Rarity: Uncommon Cost: {U}{U} {1}{U}{U}

Sakashima the Impostor [Saviors of Kamigawa] Will "Such an affliction appears toSet: Saviors of Kamigawa Type: Legendary Creature Human Rogue Rarity: Rare Cost: {2}{U}{U} You may have Sakashima the Impostor enter the battlefield as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has "{2}{U}{U}: Return this creature to its owner's hand at the beginning of the next end step."