|Colour Scheme||Legion Info||Symbol|
|Alternative name:||Sentinels of the Edge|
|Colours:||Black, white, & ice blue|
The Legio Lysanda were often tasked with guarding the dangerous frontiers of the Imperium during the Great Crusade, watching over newly compliant worlds under Expeditionary Fleets pushed the empire's boundaries further. In this they excelled, for their patience was legendary and their Princeps were often devoid of the thirst for glory shown by more aggressive Legions.
- Ardentor — Warhound Class Scout Titan. Deployed to Armatura during the Shadow Crusade, famous for nearly killing Primarch Lorgar. Destroyed.
- Lord of Virtues — Warlord Titan. Deployed to Ultramar during the Crusade of Iron.
- Unfolding Wrath — Reaver Titan. Formerly known as Argent Flame, deployed on Ulixis during the Crusade of Iron.