Uncommon Power · The Champ
Arena Mastery
Arena MasteryArena Mastery+Power
Costs 1 Energy.Costs 0 Energy.Whenever you play 4 "Strike" cards, gain 
.Whenever you play 4 "Strike" cards, gain .Arena MasteryArena Mastery+PowerCosts 1 Energy.Costs 0 Energy.Whenever you play 4 "Strike" cards, gain .Whenever you play 4 "Strike" cards, gain .