Sabrina's Gengar (29/132) [Gym Challenge Unlimited] SM91 and it has "{2}{U}{U}: Return

and it has "{2}{U}{U}: Return this creature to its owner's hand at the beginning of the next end step

Blood Arbiter

Set: Ikoria: Lair of Behemoths Type: Legendary Creature — Human Wizard Rarity: Mythic Cost: {1}{U}{R} Rielle

{T}: Gain control of target creature with power less than or equal to Old Man of the Sea's power for as long as Old Man of the Sea remains tapped and that creature's power remains less than or equal to Old Man of the Sea's power

Set: Mirrodin Type: Creature — Goblin Shaman Rarity: Common Cost: {R} Sacrifice an artifact: Krark-Clan Shaman deals 1 damage to each creature without flying

Sabrina's Gengar (29/132) [Gym Challenge Unlimited] SM91 and it has "{2}{U}{U}: ReturnSet: Gym Challenge Unlimited Type: Psychic Rarity: Rare Retreat cost: Colorless,Colorless