Traitor!

Traitor! is an achievement in the War on the Black Crag, accessible during the Kiken No Sai fight.
==Strategy==
This achievement can be considered highly difficult to do since it requires a significant amount of kiting, and also surviving the massive summoning of adds Kiken summons. In order to get the achievement, you must have Kiken be "betrayed" but not in the way you may expect.
Kiken summons Jade Hounds during his encounter, and at the beginning of his fight he has two of them named Chanpu and Kuranchi. Chanpu and Kuranchi must both survive to get the achievement. Once a Jade Hound dies, they summon Jade Residue which empowers the hounds, increasing their damage. In order to reach the achievement, Chanpu and Kuranchi must walk throw 40 Jade Residue, increasing their damage by 40% in total and then gaining a buff where they enter a Bloodthirsty State, doubling their damage and attack speed. Kiken will throw Bones of the Dead at players which they can throw back to "infuriate" him. At 40 stacks and a bone thrown at Kiken, the dogs will attack him, goring him for several hits of damage before he instantly kills him. Like the mechanic of the fight where he enrages on his pet's death, he will do the same despite them betraying him.