DonChamp is a bad deck because it has no drawpower, is slow, has a Stage 2, is prone to Catcher (even worse than other decks), Gothitelle destorys it, along with The Truth, MegaZord, MegaJudge, any deck that runs Zoroark, most Yanmegas, and TyRam is not favorable either. Thats 3/4 of the metagame.