yeah blizz sorcs are ususally a problem for my necro, but besides them the only other thing to kill me have been trap assassins who get me in a stun lock because it only takes about 3 or 4 hits from their lightning traps. also ww sins are hard for me becuase of thier insane venom/openwounds, also it maybe just a rumor but from what i have seen the assassin skill duel claw blocking actually does block bone spirits and hammers. sadly i do not have an enigma or cta so i fall very often to these assassins because i cannot tele away from them.