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Game background
Home plane Abyss
Power level Demon lord
Alignment Chaotic evil
Design details

Malgarius is a demon lord, in the Dungeons & Dragons roleplaying game.

Publication history[edit]

Malgarius was first mentioned in the adventure "Root of Evil" by Mike Mearls in Dungeon #122 (May 2005).[1] Malgarius received further details in third edition in Fiendish Codex I: Hordes of the Abyss (2006).[2]


Malgarius appears as a massive, green tree many miles high, with enormous, twisted branches swathed in ragged vines.


Eons ago, Malgarius was once ruler of its own layer of the Abyss, until its defeat by the demon lord Lazbral'thull, who conquered its realm and imprisoned the Demon Tree's life essence within an artifact called the Seed of Malgarius. For untold millennia, the Demon Tree has slumbered, only recently showing signs of consciousness.


Malgarius was defeated by its fellow demon lord, Lazbral'thull.


Malgarius's original realm is unknown.


While Malgarius's area of concern is evil sylvan creatures, it is unknown if the Demon Tree has retained any followers since its imprisonment.


The only magic item associated with Malgarius is the prison which holds its essence, the Seed of Malgarius. The Seed appears as a silver sphere five to ten feet in diameter, that "burns like a miniature sun."


  1. ^ Mearls, Mike. "Root of Evil." Dungeon #122. Lake Geneva, WI: TSR, May 2005
  2. ^ Jacobs, James, Erik Mona, and Ed Stark. Fiendish Codex I: Hordes of the Abyss (Wizards of the Coast, 2006)