I don't know if anybody else gets this glitch, but when you level up all your stamina comes back. It really doesn't. When you do one battle all of it goes back to whatever it was when you leveled up. I sure hope this glitch gets fixed..
y'know, when they stop updating this game, people will stop playing. The game will fall down the lists like it never existed. May not happen right away, but it will happen.
Wouldn't it be cool to add 1 upgrade to 1 of your cards once you beat mission 66?
(e.g. Quad walker/no abilities. Upgrade = Quad Walker with strike 1 or Swipe.)