Updating the Epic Destinies is nice and all, but this is where you could create some nifty new Spellswords!

Sonic and force might be a bit OP, but plenty of things are either healed by or immune to negative spellpower!

Positive energy Spellsword would be an extreme case of Situational usefulness and would be ill advised to be used against several foes.

Force
Nullification
Sonic
Light
Positive Energy