Darkrai LV.X (DP19) [Diamond & Pearl: Black Star Promos] Aether Revolt Prerelease Promos 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

Set: Limited Edition Alpha Type: Artifact Rarity: Rare Cost: {3} {1}: The next time an unblocked creature of your choice would deal combat damage to you this turn

Sainted Warrior is put into your graveyard from the battlefield

Set: Pro Tour Promos Type: Enchantment Rarity: Rare Cost: {3}{G}{W} Creatures you control get +1/+1

Set: Diamond & Pearl: Majestic Dawn Type: Water Rarity: Holo Rare Retreat cost: Colorless

Darkrai LV.X (DP19) [Diamond & Pearl: Black Star Promos] Aether Revolt Prerelease Promos and it has "{2}{U}{U}: ReturnSet: Diamond & Pearl: Black Star Promos Type: Darkness Rarity: Black Star Promo Retreat cost: Colorless