After reading many posts and asking friends, i decided to give this ENM a shot. Here are a few tips for everyone.
1) The moblin you can gamble with to send you to the minshaft is at E-11. You can get to him by entering Oldton from the second North Gustaberg entrance (forgot the <pos>.)
2) I bet 7 k with the moblin, and my chances were if he rolled between a 5 and 25. He rolled a 5. Payed another 2 k and i was there.
3)The fight itself is very hard, i beat it as a taru rdm with melee only.
4) It's like a level 60 Maat fight, subjob gets taken away when you enter.
5) The mob is a puppet, a hume version of your job.
6) He has a moblin the guides him, this moblin rolls a die. It's really the luck of the die in this one, because the moblin healed me to full twice, healed it for around 1 k hp, and made it use Chainspell (which really hurt me)
Reward was 2 k exp.
Just thought i would post here since alla is down and i hate KI. Good luck on this and if you have any questions/comments reply back.
Edit - I got a ring it was a rare/ex rmg only ring, level 61 enchantment - Mp recovered while healing + 3. I think i'm the first on my server (Asura) to get it.