Conclave Tribunal GRN/6

Set: Guilds of Ravnica
Collector Code: GRN/6
Finish: Regular

Name: Conclave Tribunal
Type: Enchantment
Oracle text: 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 this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.