Aether Bindings of the Third Age

**Instant** -- Destroy this: Until end of turn, whenever an aura permanent you control with Sigil in its name leaves the arena, **amp 1**. _(The next time you would deal arcane damage this turn, instead deal that much plus 1.)_{br}**Battleworn** _(When the combat chain closes, if this defended, put a -1{d} counter on it.)_