Conclave Tribunal

The lineage of catch-all white removal runs through Oblivion Ring and Banishing Light: an enchantment that exiles a nonland permanent an opponent controls until it leaves the battlefield. Cast on its printed cost of , this one is actually a step slower than those three-mana predecessors, and that extra mana is the point. Convoke is the discount that pays it back, and it rewrites when the effect is affordable. Sideways creatures change the math entirely: an aggressive board that has already committed its threats can tap them to deploy removal a turn or two ahead of schedule, which inverts the usual tension. White aggro normally has to choose between developing and interacting; here the board itself pays for the interaction. The cost is structural rather than printed. Convoke spends nothing from your hand but everything from your battlefield's pressure: every creature you tap to accelerate it is a creature not attacking this turn. That tradeoff is the whole decision, and it is why the card belongs in go-wide shells rather than control, where the bodies that would convoke it do not exist. The exile clause carries the standard fragility of the archetype (destroy or exile the enchantment and the stolen permanent comes home), but pairing flexible exile with a cost that aggressive decks can settle off the board expanded what removal an offensive white deck could justify running.