I like this idea. It would make a weeks worth of defense worth it, and force guilds to actively secure relics they want to keep.Hmm how about introducing shifting stats on the relics once a week or something (And remove those all encompassing relics). IE for EP for example right now its def/arm with XP bonus. In a week, it could be att/def but without the bonus or something of that nature (Enhancement would also change too). Would really weaken any agreements between guilds...just a 3 AM suggestion lol...
I am sure it could be fleshed out to work really well.

