I managed to do the hard badge by doing a bunch of handstands while doing one backflip. If you are lucky, you'll bounce high once or twice where you can fit in more headstands.
got all the badges. my team eventually was 3 trikes in the front and a golden dragon w/ 2 white ghosts in the back. just used defense and brute magic. almost didn't beat the last boss, though.
I had a labyrinth card up, which removes the penetrate ability on all cards, but a Synthian Artillery was still able to penetrate through my blocker. Do cards like labyrinth only work on modifier cards, or is it a bug?
 "Shopping Cart Hero"){kind=icon}
 "Brute Wars"){kind=icon}
 "Mytheria"){kind=icon}
 "Tactics 100 Live"){kind=icon}