The Tempest Warblade is a Power Weapon used by the combat walkers of the Questor Imperialis, the Imperial Knights, and by the Renegade Knights of the Questor Traitoris. These weapons are found only on the Cerastus Knight-Castigator. The Knight-Castigator pattern is used by those Knight Houses who are often faced by an overwhelming number of the enemy.
The Tempest Warblade is a massive Power Weapon, many times the height of a man, that is used by the Castigator to scythe down large infantry formations, pierce the armoured skin of enemy vehicles or to engage enemy Knights and Titans in melee combat.
- The Horus Heresy - Book Four: Conquest (Forge World Series) by Alan Bligh, pg. 306
- The Horus Heresy - Book Five: Tempest (Forge World Series) by Alan Bligh, pg. 130
- Imperial Armour Index: Forces of the Astra Militarum (8th Edition), pg. 98
- Imperial Armour Index: Forces of Chaos (8th Edition), pg. 60
- Forge World Webstore - Ceratus Knight Castigator