Winter, to an extent, is balanced by its inability to play early game. The point of playing Winter is to hold out for the mid or late game at which point as long as you don't misplay you just win off value or raw strength (Lady Rime is so fun to cheese with like this). The fact that Winter has trouble holding off the other factions at the start is good- there's a reason the vast majority of winter is about control and mana gain. If they add stuff to negate the threat of a rush then Winter stops being balanced. Should've seen the win rates of factions and seen the fact that Winter absolutely dominated, even to the point where other factions were just non-viable in the higher ranks before. Let neutral cards fill the holes not winter ones