Worn Powerstone [Commander Anthology Volume II] Spirit Knight {T}: You may play the

{T}: You may play the exiled card without paying its mana cost if you attacked with three or more creatures this turn

Set: Seventh Edition Type: Artifact Rarity: Uncommon Cost: {2} Fire Diamond enters the battlefield tapped

"This might hurt less if you don't fight so hard

When Sage's Reverie enters the battlefield

exchange its power and the power of target creature it's blocking until end of combat

Worn Powerstone [Commander Anthology Volume II] Spirit Knight {T}: You may play theSet: Commander Anthology Volume II Type: Artifact Rarity: Uncommon Cost: {3} Worn Powerstone enters the battlefield tapped. {T}: Add {C}{C}. Even a fragment of a powerstone contains within it not just energy, but spacevast dimensions trapped in fragile crystal.