I've got an idea!
Alright, Pandora's box was rumored to hold a lot of evil in it. Well it was part of a set and had a Pandora's orb (price of one for two= great deal) which held a lot of power in it! When it was shattered, everything was released from inside. Now the good guys are trying to gather the pieces (about 9) to put the orb back together and hence those strange powers, but the bad guys are against that and try to find the pieces themselves and hide them away from the good guys. The pieces are probably really indestructible or can only be destroyed in the presence of the other pieces (I don't really know about that part sweatdrop ) The cool part is every time you try to get a piece of the orb, it has been possessed by some sort of power that you must defeat. Like the blue part of the orb is probably protected by a gigantic sea monster! (I don't know if that's a little too much there) but hope you get my point xp