Go to Strifewind Isle to enter Treasury of Claw. Only 1-3 players may enter the zone. This is NOT the same Treasury of Claw as the Isle of Desolation; there is NOT a wall that you can run and jump on near Nagnag (to make the mobs from the hall drop off you as you can in Treasury of Claw on the Isle of Desolation so either kill as you move toward her room or expect a lot of mobs on you once you reach her room.
Nagnag is only 64^ but her babies, who she will call to help her, are 64vv heroic encounters. Take some help, or kill them first.
Enter the Strifewind Isle, Treasury of Claw ( -59, -7, -552 ) Copy/waypoint -59, -7, -552. Head east and kill Nagnag Strifewing (64^) to open the doorway to the room next door. (Newly opened doorway is back out in the main hallway.) Climb up the wall and kill Granddaddy Strifewing (64^) in one of the four rooms, for example, ( -170, 111, 3 ) Copy/waypoint -169.61, 110.89, 3.05 and then pick up the bot.