Indefensibly Honed

**Sharpen** target sword you control. _(Put a +1{p} counter on it. Remove all +1{p} counters from it at end of turn.)_{br}If it has 3 or more +1{p} counters, your next attack with it this turn gets "When this is defended by 1 or more cards, deal 1 damage to the defending hero." **Go again**