First, you need to get a legacy puzzle ring, fireresist and hp regen
A party (suggested) with people having ik or zuni or dh pet set
Equip the puzzlering and stand in front of the fires of the a3 traps
It will constantly spawn goblins and your pets will kill them
Adds
New puzzle ring
Threatening shout grim harvest
More ppl with ring more goblin
Sry if repost, couldn't see other threads about it