Dawnblade (CRU078) [Crucible of War]

Once per Turn Action - [1 Resource]: Attack If Dawnblade hits, and it's the second time it has hit this turn, put a +1 [Power] counter on Dawnblade. At the beginning of your end phase, if Dawnblade has not hit this turn, remove all +1 [Power] counters from Dawnblade.