d4ca328e_f_the_Mists_FOTM_guide___Dulfy__Agony_attack_description
[Fractal] Cliffside [Boss] Legendary Archdiviner [Agony attack description] 
Red circles on the ground and white AoEs when the boss gets to <50% when you fight him a second time. Both can be dodged. The white AoE requires timing on the dodges based on the cues(see Cliffside Fractal)
GW2 Fractal of the Mists FOTM guide - Dulfy
Agony attack description