I figure I should probably say I would prefer actually playing the duels out, but I'm not sure about using things like that for it (especially if we've got custom/anime cards to keep track of). I've been in a couple of YGO RPs where a third party (the GM or one of the other players) just PMed people their draws when necessary. It's slower, but makes those sorts of things easier to keep track of.

Anyway, as far as deck building goes [s]I'm in favour of ignoring everything released since Zexal[/s] a custom banlist hitting some of the more ridiculous decks and bringing back some things that aren't really broken anymore could be fun.