I admit i haven't looked much into DD2, but i not sure if this is theory is correct. If these two people are link in soul/body, then won't each other traits rub onto each other OR end up thinking as one? Or even to the stage lossing their own idenity where they not sure WHO they are?

Yes i should READ more posts but theres about 6k of topics lol and not much time to read them all.

Also a very posiability (spelt wrong i know) of classic style "final battle" where hero will fight the chaos knight, it expected and wanted like such as ignus vs namelessone in planescape: torment. Give the fans what they want so to speak.

Widdowhugger.