I've had those kinds of buys before, though I rarely do that anymore. I role with the "rent before you buy" policy; it's pretty effective.
It would be my first time playing any advance war, but I'm up to the challenge :3
Nice set up, I was always thinking of evolving my Snowrunt into a Frolass. And I know <3! So many legendaries! Hopefully I won't screw up like I did with Giritina ;-; in the heat of the moment I defeated it rather then using my Master Ball.