I think treasure cards should be banned from PvP. There are some people who will use powerful treasure cards (ex. rebirth and judgement) just to earn status and arena tickets. I also happened to notice that the Battle Cherub (that is NOT what this is about) was banned from PvP to make it fairer. All I'm saying is, even if I don't have a pet giving me three guardian spirits, what's stopping me from going out and getting three guardian spirit treasure cards? Maybe for those people who like using treasure cards, there could be a checkbox to click that says "no treasure cards" that will match you up only with people who also use their own spells.