If an item you control has been destroyed this turn, this gets overpower. (This can't be defended by more than 1 action card.)
Galvanize - When this defends, you may destroy an item you control. If you do, this gets +2{d}.
When this defends, you may discard a card or destroy the top card of your deck. If that card has watery grave, this gets +2{d}.
Blade Break (When the combat chain closes, if this defended, destroy it.)