There are quite a few cards, that dominate the meta game and completely prevent variety in the PvP environment. Only Fire and Shadow T1 are viable once people reached a decent level and that is quite unpleasant. We are in a turret T1 meta, where Frost and Nature can't compete. Turrets do have insane damage and tankiness, higher range and don't reward micro management at all.    Phasetower  -> 900 damage for 60 power is way more than any T1 unit could offer. Due to the splash yo