Said to be the combined spirits of sailors who passed away at sea, packs of Dheldoom skulk around massive shipwrecks. They superheat the water around the ship to drive away curious divers and predatory Pokémon.
In a Dheldoom pack, the one with its horns raked sharply back serves a leadership role. The soul of seaweed adrift in the waves became reborn as this Pokémon.
