Palace Jailer

The genius here is that the two enter triggers feed off each other, and the conditional binding them is what keeps the card honest. Crowning yourself monarch turns on a card every turn at your end step, while the exile clause removes the opponent's best creature for as long as you keep the crown. But that exile is explicitly leashed to the monarchy: the moment an opponent becomes the monarch, the exiled creature comes back. That single conditional turns a flat removal spell into a contested resource. Most exile effects are permanent; this one stays bought only as long as you keep holding the crown, so any combat damage that flips the monarchy doesn't just cost you a card draw, it refunds the opponent their best threat. The consequence is a card that rewards the player already ahead or at parity: only someone who can defend the crown actually keeps the body exiled, while a player getting beaten down loses both the card advantage and the removal in the same swing. That places it among the rarer answers whose effects hang on an ongoing game state rather than a one-time event, undoable the moment the underlying condition reverses. The 2/2 frame is almost incidental; the card is a removal spell and a draw engine wearing a creature's clothes, with the monarchy the thread that ties both into a single must-answer play.