Played with Sergeant Springer, Sky Shadow tank, Flamewar.  the main goal is to gather cards and put as many upghrades as possible on springer while chipping away damage with the other characters. your first transformation should be flamewar to bot mode but the rest of the game should be transforming springer and  scraping and gathering cards in order to get as many cards as possibles. try and collect extra paddings and put them on springer and he will be near unkillable. you can use any star card for this team i just found that heroic resolve works the best