Sasha Purifying Acolyte 276 (Radiant Origins) - Foil Condition:MP and it has "{2}{U}{U}: Return

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

the player may cast the copy without paying its mana cost

if there's a card under this character

III — Gain control of target permanent an opponent controls

Sasha Purifying Acolyte 276 (Radiant Origins) - Foil Condition:MP and it has "{2}{U}{U}: ReturnFoster (At the beginning of your recollection phase, if this ally hasn't been dealt damage since the end of your previous turn, it becomes fostered.) On Foster: Banish all cards in all graveyards. If one or more cards would enter a player's graveyard while Sasha is fostered, banish them instead.