I think that it's stupid that there is no way to get rid of unwanted achievement cards. They start cluttering up over time. That's pretty much the only thing that I don't like about this game. 4/5
Is it just me, or are all the quests that I get just above my power to beat? It seems that as I get stronger, the quests get stronger too, and consequently, I can never beat one.
I hate how it won't let me sell some cards, it says they're "reserved". I have a bunch of useless crap cluttering up my card storage, with no way to get rid of it.
:-)