So anyways camped him for about 4 hours until he finally popped right there at (I-9) on first map... I tried different things but it seems that killing the four placeholders nearest to that corner gets the job done.... several times i killed every yagudo in the area by forming a train and killing about 40 at 1 time.
real easy but he only dropped barbarian sword :( 0/1 on demonic
The 4 spawns there share yagudos and bats, and you should just stay near the large torch killing the mobs from both directions till he pops... im sure any level 35+ can beat it easily.
Fantycloud
70 RDM/THF
* Sword has gone up on price dramatically ....