Вот на гохе нашёл:
Apprentice I = level-1 (automatic)
Apprentice II = baseline (storebought)
Apprentice III = level+1 (crafted)
Apprentice IV = level+2 (not yet in game)
Adept I = level+3 (uncommon drop)
Adept II = level+4 (not yet in game)
Adept III = level+5 (crafted from rare harvests)
Adept IV = level+6 (not yet in game)
Master I = level+7 (rare drop or character advancement choice)
Master II = level+8 (not yet in game)
Master III = level+9 (crafted from very rare drops)
Master IV = level+10 (artifact rarity of around one per server. Not hard-limited to just one, but don't ever expect to own one of these)
ток не знаю может поменялось что нибудь с 12.11.2004