I can train mobs on a 90 thf so you should be able to do it on a 99. Just go to where all the dolls are near where Despot spawns. Use an AoE Weapon skill with a white mage, and 2 black mage trusts. Profit. I can kill 4 without any problems. I haven't tried more. But I'm sure I could get up to 6. And as a 99 you could probably pull all of them :|
He's going for Alchemist's in Velugannon Palace, which has sparse mobs to pull iirc. Probably best bet would be training either those statues or uhh weapons near Brig weapon spawn.. I haven't tried my luck yet. I just hate training casting mobs though, which is why I preferred aura statues over deco weapons for weaver's torque.
@pimpjuice: pure luck, way to sprinkle salt on their wounds.
@anjisnu: at least you made a killing off raxa lol
Just to give you an idea of brown rate, these are typical Celestial Nexus camp pulls with a few Casket Prowess, I don't remember how many. Of course some times you'd get only one or none at all, but from my experience getting over 4-5 caskets is a waste cause I wouldn't have time to open them all:
At first I would bring a healer and wear -50%pdt, but eventually I got confortable enough to just use trusts.
You can do 2 pulls, half of each hallways in the celestial nexus loop (and farm dark clusters in between if you dont wanna wait for respawns). I liked it here better than Ulli camp because I didn't have to wait as long on repops.