If you wanna go really nostalgic, increase the spawnrate of Tauromacis/Taurospears in Dungeon, in Sleepywood. Now THAT's ancient. As it is there's like 3-5 Tauromacis/Taurospears in the entire map. I realize this may have been good before Orbis was released, but now the map is just out of the question. I guess you would have to ramp the spawn up -alot- for it to be profitable.
Leafre: The Area of Black Kentaurus Leafre: The Area of Red Kentaurus Leafre: The Area of Blue Kentaurus