Starting from the assumptions that Dragon Magazine material was often unbalanced (under- or over-powered) and that adding lots of options always increases the chance of combining powers and feats into something more lethal than otherwise, I gave my players a strict list of manuals they can use for character building.
I've always been prone to accept case-by-case additions from Dragon Magazines when it is a feat that fixes some problem with the rules, e.g. a class feature not working properly.
Now, one of my players is intent in creating a (level 10, bordering 11) character that looks like Kratos, from the God of War videogame franchise, and he would like to get the spiked chain training feat in order to be able to dual wield the chain.
Is there another feat that comes from the manuals (PHB 1 to 3, heroes of, * Power, forgotten realms campaign setting) that might make the character able to dual-wield reach weapons? I'm not against refluffing something else into a spiked chain.