Construct of Doom

• Construct of Doom is a weekly mission for heroes and villains given by Guy Gardner in Doomed Washington, D.C..

• Guy Gardner in Doomed Washington, D.C. has (somewhat begrudgingly) asked for help repelling especially terrifying Ultraviolet Nightmares.

• Defeat Ultraviolet Nightmare and its minions in Doomed Washington, D.C.
• Return to Guy Gardner in Doomed Washington, D.C.

• Ultraviolet Nightmare
• Thrall (Ultraviolet Corps)

• Construct of Doom uses a counter system (0/100). You can defeat the Ultraviolet Nightmare boss to instantly complete it, or defeat 100 Thralls in the nearby area.
• When the Ultraviolet Nightmare falls to about 60% health, Lantern Devices would spawn repeatedly around it (even if the Ultraviolet Nightmare is no longer in combat), emitting constant damaging pulses. They can be destroyed by interacting with them. Each Device destroyed counts as 5 towards the 100 goal. Lantern Devices' pulses do not put players in combat.
• More Ultraviolet mobs would also spawn and count as 1, but only when the Ultraviolet Nightmare is in combat.

• 2425 Cash
• 8 Source Mark
• 8 Justice Token
• Legion of Doom: Large Loot Cache
• Soder Cola Extreme

• The Ultraviolet Nightmare can have one of four possible forms with different attacks (based on Harbinger of the Devourer from Justice League Dark (Episode), Babyface and Clownsanity from Ace Chemicals related content, and the Snake Tentacles accompanying Typhon in God of Monsters).

No quest-specific video verified in the search performed on 2026-10-21. This does not mean none exists.