There are a few things. Physical attacks that harm flesh and blood creatures are really ineffective. Your best weapon is your tonfa but I have range on you with the sword. [@Rilla], [@Melonhead] and [@DJAtomika] will attest Skallagrim's strength is not physical in nature. While an excellent hand to hand fighter, his strength is his aesr power. Drain it or force him to use it often are the best ways to limit his ability to wreck havoc. Otherwise he becomes an extremely deadly opponent.