Guilds of Ravnica :: Conclave Tribunal

Eratta

Enchantment
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) When Conclave Tribunal enters the battlefield, exile target nonland permanent an opponent controls until Conclave Tribunal leaves the battlefield.

Other Releases

Guilds of Ravnica...