Dreamscythe

Pit of Sacrifice
Return from the prophet's room and clear the central dragonkin before taking Dreamscythe and Weaver. Use the outer wall for the drakes' Wing Flap instead of fighting beside the opening in the floor. Keep both breath cones away from the group and agree which drake dies first.

Dreamscythe
Elite DragonkinDreamscythe is met on the return from Jammal'an, where an uncleared central hall leaves little safe space for Wing Flap and Acid Breath alongside Weaver.
Abilities

Wing Flap
Strikes enemies in a cone in front of the caster, knocking them back.
Settle Dreamscythe on the cleared outer floor with the tank backed by a wall, away from the central opening.

Acid Breath
Keep Dreamscythe's breath cone away from Weaver's tank and the players coming out of the prophet's room.
Tank- Pick Dreamscythe up before the group spreads out of the prophet's room. Establish a wall-backed position for Wing Flap without pointing Acid Breath across Weaver's position.
Healer- Cover the Dreamscythe tank's breath damage even if the group kills Weaver first. Stay on the cleared outer floor rather than following a knockback toward the central opening.
Damage- Let the tank establish Dreamscythe away from the pit before committing damage. Keep behind its breath cone and stay on the called target while Weaver is also active.