Invasion of Gobakhan
Battle - Siege
(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When Invasion of Gobakhan enters the battlefield, look at target opponent's hand. You may exile a nonland card from it. For as long as that card remains exiled, its owner may play it. A spell cast this way costs more to cast.
not legal Legacy
not legal Vintage
not legal Modern
not legal Standard
not legal Pioneer
not legal Pauper
not legal Commander
not legal Frontier