|Colour Scheme||Legion Info||Symbol|
|Alternative name:||War Griffons|
|Founded:||Age of Strife|
|Forge World:||Gryphonne IV|
|Colours:||Dappled grey with yellow|
|Strength:||176 (start of Horus Heresy)|
|Battle Cry:||War is Just|
The Legio Gryphonicus (aka the War Griffons) are a Titan Legion with an illustrious history. Born during the very founding of the Adeptus Mechanicus, the Legio Gryphonicus has seen action in many battles against Traitor Titan Legions since the Horus Heresy.
The Legion was founded sometime during the Age of Strife and at the time was the primary tool of power of the pocket empire of Gryphonne IV. The planet itself had been colonized by Tech-priests from Mars. The legion became one of the largest and most well-equipped of the Great Crusade alongside the Legio Mortis, Legio Destructor, Legio Crucius and Legio Magna. It gained many battle-honours, most notably in the Rangdan Genocide and Ullanor Crusade.[7a] By the end of the Crusade, the Legio numbered some 176 Titans of various classes, with roughly half of these being Reavers. They also possessed an unusual number of Titan-Barques and transports operating under its own fealty and allegiance, which allowed it to operate largely independently when the need arose. This would serve them well in the coming Heresy.
When the Horus Heresy broke out, the Legion remained true to the Emperor. However, before the rebellion Horus had foreseen this decision and scattered the Legion across the Galaxy under the pretense of their presence being necessary for many smaller campaigns. Warzones included the Ruin of Maedran, Battle of Molech, the First Battle of Paramar, and the Battle of Beta-Garmon. The Legion took grievous damage during the Beta-Garmon campaign, and could only provide scant forces to the Siege of Terra. Throughout the war, the Legio Gryphonicus built a fierce hatred against the Legio Mortis.[7a]
A battle group of the War Griffons Titans fought alongside the Gryphonne IV Skitarii forces that took part in the Castra Campaign where, with the help of the first batch of newly produced Leman Russ Conquerors, they encircled and trapped the traitor besiegers of Hive Castra Septus, eliminating the traitors within the pocket.
The Legion suffered a catastrophic defeat in 997.M41 when its Forge World of Gryphonne IV was overrun by Hive Fleet Leviathan. During the battle, the majority of the Legion was torn to pieces by swarms of Tyranid Hierophants and Tyrannofexes. However, a portion of the Legion survived the tragedy and was able to provide a total of eight Battle Titans to the Betalis Campaign against the Eldar. Some of its surviving Titans also took part in the defense of Cadia during the Thirteenth Black Crusade. The Fortress World was destroyed in that conflict, but the final fate of the Legio's Titans is unknown.
- Warscorn — Imperator-class. Fought in the Battle of Beta-Garmon during the Horus Heresy.
- Aureum Castigator - Warmaster Titan, one of the roughly three in service at the start of the Horus Heresy.
- Argent Monarch — Warlord-class.[7b]
- Iron Regent — Warlord-class. Highly decorated during the Great Crusade where it battled Xenos Titans. During the Horus Heresy it fought in the Battle of Tallarn where it slew three enemy Reaver Titans and one Warlord Titan of the Legio Krytos.[7c]
- Aeterno Rex — Reaver-class.[7b] Piloted by Princeps Usselus Kine during the Horus Heresy. Destroyed during the Ruin of Maedran by two dozen Knight Lancers of House Perdaxia.[7c]
- Dictatio — Reaver-class.
- Fidelis Natus — Reaver-class.[7b]
- Invictus Nova — Ancient Reaver Class Titan created shortly after the Legion itself.
- Magna Canis — Warhound-class.
- Nobilis — Warhound-class.[7b] Fought in the Ullanor Crusade and its Machine Spirit still seethes with a bestial hatred of xenos.[7c]
- Sanctus Venator — Warhound-class.
- Tempus Prima — Warhound-class.
- Venator Lux — Warhound-class.[7b] Fought in the Ruin of Maedran.[Needs Citation]
Legio Gryphonicus in action on Betalis III
- 1: White Dwarf 120, [Needs Citation]
- 2: Imperial Armour Volume Eleven - The Doom of Mymeara, pg. 106–107
- 3: The Horus Heresy Book Three pg. 160–161
- 4: Imperial Armour Volume One - Imperial Guard and Imperial Navy, pg. 53
- 5: Imperial Armour Update 2002, pg. 45
- 6: Codex: Adeptus Mechanicus (8th Edition), pg. 23 — Gryphonne IV
- 7: Adeptus Titanicus (2018) Rulebook
- 8: Titandeath (Novel), Chapter 23
- 9: Adeptus Titanicus: Loyalist Legios, pgs. 28-33
- 10: Mortis (Novel) Chapter 17
- Imperial Armour Volume Eleven - The Doom of Mymeara, pg. 27
- Codex: Tyranids (5th Edition), pg. 28
- Codex Titanicus (1st Edition)