Dread Devourer

The Dread Devourer is an Overload Champion, specifically an Overload Chieftain, that usually spawns near the Nightmare Harvester when a Core of Dread is deposited in Nightmare Containment.

If it is not killed quickly, it consumes some of the Shards of Dread already bound at the Harvester. It is relatively weak and can be handled with the Scythe, help from other players, or Anti-Overload mods and weapons.