The guy is meaning something different. I think he's a player of Dragon-Network.
Anyway: Skill enchant bug allows you to get skills of other races. I changed a char of myself for a sws/bd/pp/bish/ee - da/he It had some skills of sws/bd/etc so it isn't a real sub just there's someway to get those skills. You had to do it with HLapex, and it doesn't work anymore on Dragon-Network. So, forget about it.