Finally got all the medals :) Some glitches I've found: 1. The gold dragon sometimes just skips its turn. It wasn't stunned or something. 2. I was farming at the 32lvl 4 dragon+2monolith at the second-to-last room. At lvl 39, my Nats became strong enough to wipe out first wave only by her Pulsar. But at the first match after loading the saved game, she can't.
Say, you have only one [insert important card name here], and need that card on your raid, quest, mission, or whatever. You search the card, nothing appears. Now you know that the card is somewhere in your deck, and have to look around all the decks you have to find that card! This is really annoying, so please display in-deck cards when I search for them, devs.