black razor is not strong, you think it does level drain? then combin your fighter with a class say mage or cleric, so you can use amulet of power
even if you are a pure fighter, blackrazor's level drain can still be stopped


easily
about mage being inadquate to stand against fighters, this is true. mages are not meant to join the duels in BGII. go complain to Bioware, not me. in mplayer, if you duel with a mage... people wont even bother to play you. they have discovered everyway to disable a mage no matter his level, hell, Dark Shep even beat lvl 225/225/225 fighter/mage/cleric with his level 14/12/11 thief/fighter/mage, LOL (btw, this Dark Shep dude is really good, so dont say his opponent sucks.) my point is, there TONS of secrets out there. you think you see all? far from it
keep those items man, they will invoke creativity
last note: if a pure mage wants to duel, I suggest give him some permissions, like, being able to prepare a spell trigger pre-battle, or say, allow him to choose one item from his fighter opponent and tell his opponent to not use in the fight. that will make the duel more interesting