
What you need:
-Mage/Rogue/Hunter
-Good DPS
How it works:
After you kill the first boss, you should walk down a ramp to a platform, surrounded you should be alot of webs, the platform is the only rock and its circular. Further down the hill there are mobs, and below the web is the boss. What you do is you have the Mage attack the mobs (while everyone else stays on the Platform [IT IS IMPORTANT EVERYONE ELSE STAYS ON PLATFORM]) Then when they start coming towards the mage, have the mage hit invisibilty, and the mobs will disappeaer. At this point RUSH as fast as you can down like you are going to the 3rd boss, and there you will see the second boss. Kill him as fast as you can, or else the mobs will come (you can kill him and still get the achievement while they are there, but they heal him so...)
Reward:

(and obviously the loot)
Extra Pictures:


ps: wie immer
