You don't have to be particularly strong to fight ulbernauts. You do need a fair number of hit points so that if you lag or misjudge position you can take a couple hits but mostly you just need to have timing, good weapons, a moderate amount of skill with the weapons and enough perserverence to finish the fight. It is also helpful to have potions available of course. Ulbernauts are slow and stupid. With a little luck you can kill them without getting hit once. Again it has been a long time since I have fought them regularly, they may have changed but I don't think so.
I never said hit and run, you did. I said running attack. It is the running attack, as we all know, that produces the glitch. You don't even have to be moving at the time if a movement packet comes in out of sequence due to lag. I have certainly had that happen ... come to a full stop start an attack and trip into oblivion.
I remembered Shal as being very proficient with daggers and assumed he had two of the best by now. Perhaps I remembered and figured wrong.
Certainly falling off the world is annoying but it is just temporary.