Shriek Razors

While this is in your graveyard, at the start of your turn, you may destroy 2 Silvers you control. If you do, equip this.
Attack Reaction -- {r}{r}, destroy this: Target attack action card defending an Assassin attack gets -1{d}.
Battleworn (When the combat chain closes, if this defended, put a -1{d} counter on it.)