Spy

When Spy enters the battlefield, target player gains control of Spy.
When player in control of Spy takes their turn, you control Spy as though it were your turn.
{2},{t}: Choose one:
-Sacrifice target creature without indestructible.
-Target artifact gains Vanishing 1.
-Exile Spy. Until end of turn, you may cast Spy from exile without paying its casting cost. It can't be countered if you do so.