Yeah, I've been wondering about tiers of characters as well. Like, how do you rank them based on power so that they don't face someone too strong/too weak? Also, how would a character who can summon work? I have a Deity-class (self-ranked, mind you) character who has the capability of summoning other powerful beings to fight for him (provided his foe can summon as well. If not, then he doesn't use them).