A 5/2 opener on a board with vault is verry powerful. But is it always the right move? There are a few 5 costs that could be better, like Montebank. So, my question is this:
The game just started and you go first. You see q Vault, but decide instead to buy...?
Basically, when is opening Vault not the best move. I'm especially interested to see if any 4 costs make the list... Do you buy Vault vs Gardens Workshop?