[Gregstrom]

Well, for Niefels you'd give them cold immunity and then just leverage the four arms however you like. Against ridiculous defence you can always use four swords of swiftness and speed boots (by attack 16 you'd be dealing a -30 defence penalty), if armour's the issue use Fire Brands, Eye Shields and the like. They get a chance of Air and Blood magic too, which is always nice. The ability to use a 2h weapon and still have space for shields is rather nifty.

Disclaimer: Other, better kit-outs may well be available.