The only downside to edwin, is his amulet ( i know, sounds weird )
It gives you 2 extra spell-slots per lvl .. BUT .. when casting PI, the amulet is re-equipped, meaning that when Edwin casts PI, his PI will have 2 less spells per lvl than the real edwin.
I have never found any logic in which spellslots disappear, its not the lsat two spellsots i believe .. might just be random.
Anywayz, its pretty annoying
Plus the fact that Edwin cant wear the amulet of power, so any self-made PC, would allways out-cast edwin at higher lvls
