Horus Heresy · atlas

Titan Legion · traitors

Legio Mordaxis

A traitor Titan Legion that fought among the Five Hundred Worlds of Ultramar (the era of Calth and the Crusade of Iron) alongside the World Eaters, the Word Bearers, Legio Infernus and Legio Audax. It fought the loyalist Legio Praesagius (the Defence of Tyros — a loyalist victory, with House Ærthegn on the traitors’ side).

Category
Titan Legion
Side
Traitors
Key events
1 event
Forces
Canon gives no strength figures.

Fate

After the Heresy — a Chaos Titan Legion.

Key events

Part in other events

Sources

  1. WH40k Fandom: House Orhlacc
  2. Adeptus Titanicus: Shadow and Iron
  3. Atlas compilation · source check 2026
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