EDIT: I called them crystals. They are in fact a stone not crystal. My bad.
Yes, You read right I got over 2.5m exp in around hr. I went from v10 to v12 in 5hrs.
Requirements:
Group of 4. V7+ to get full exp.
It is in a dungeon.
Tank, Healer and 2DPS is the best combo. But could do it with out a tank. The dps should be AOE to kill trash and single target to dps boss.
People must do as there told. Other wise this increases time.
Place:
The dungeon is Ruins of Kardala as seen in the location below.
Below is a map of the instance and locations marked.
How to get the item to summon him:
I marked 3 locations in red in the map above.
When you first Enter go to the East. There is 2 Statues here. When you agro/hit the ghost he will bring them to life. Kill these 2 mobs. They have a chance to drop a crystal to summon the boss. Each player in the team can only hold one. So if more then one drops go back for it after using it.. If no one gets a crystal move to the next spot. DO NOT MOVE TO NEXT RED SPOT ON THE MAP IF SOMEONE HAS ONE TO SUMMON THE BOSS. Reason being is if someone is holding one they will not get another as a drop. So wait to loot the mobs till there all dead.
How to summon the boss:
Go to the blue mark on the map above. There is a alter all you need to do is to have crystal in your inventory and hit E. Do not try and use them at the same time. Only one can be summoned and it waste the crystal.
How to kill the boss:
He is simple TANK AND SPANK. Nothing spectal he hits kind of hard but can easily be healed threw. He will summon a shadow mob. But this mob hit 0 on me in light armor with 2k armor so nothing there to worry about.
That's it. Just repeat till all the crystals are used up. Make sure to go back and pick them up if you get more then one per pack.
Also to reset just go out side and disband party and reform it.
I did this for 5hrs or so went form v10 to v12.4mil exp for v10-11 and 5m for v1-12