Aether Bindings of the Third Age (ROS163) [Rosetta]

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