I just looked at Le Bot, and JamesRo had already created a bot for the quest Soul Searching, though I haven't tested it yet. So it probably won't have the BLoD quality in it.
Necromancer. Most people have Necromancer, that I know of. When creating your bot, I recommend only using Weaken in the bot, if you choose Necromancer. It isn't hard for people to replace the Skill List in a bot and overwrite the file, so you don't have to worry about using the "wrong" class.
Also, most people will understand the term, bot, meaning a file you load into a Bot Manager and trainer as the client used to run the game with hacks and such