I'm putting together a villain for a pathfinder campaign. Gnome synthesist (summoner) 2/barbarian 1. I want to know if it's something other GMs would allow for pcs or if it's too broken. The synthesist wears his eidolon like tony stark wears iron man. With the exception of armor, he uses his own gear/abilities. He uses the eidolon's physical scores while it is summoned. In theory, rage affects the eidolon's scores. Would you allow this?