Legio Invigilata - Notable Titans: Stormherald - The Stormherald was one of the few Imperator-class Titans in the Legio Invigilata and the war engine of Princeps Majoris Zarha Mancion during the Third War for Armageddon and the Battle of Helreach. The Stormherald 's Machine Spirit was resentful at being bound to its Princeps, and for years of their enforced cooperation it had patiently weakened Mancion's mental resolve, seeking to finally drown her in its mindscape -- an effort only made easier as she aged. The Titan's efforts caused Mancion to not be in complete control of her thoughts, the flood of the Titan's mental gestalt making her undertake brazen actions. At one point during the Battle of Helsreach, the Stormherald nearly succeeded in overthrowing her will -- when the Draconian fell to an Ork trap and was destroyed by the xenos, Zarha Mancion was overcome with anger and foolishly strode ahead of her screens and Skitarii fire support seeking vengeance, only to fall to a similar trap moments later. The damage inflicted by the Greenskins and the shame of defeat caused her to loosen her grip on the recalcitrant Titan's Machine Spirit -- and be very nearly overwhelmed by it. The Titan and its Princeps would have been lost had it not been for the intervention of a Black Templars strike force under the command of the Black Templars Reclusiarch Grimaldus. The Astartes cleansed the God Machine of xenos taint and their Chaplain helped Zarha Mancion emerge from the psychic maelstrom that is a Titan's mental landscape. The Stormherald would continue to participate in the Battle of Helsreach until it was destroyed by the Ork Gargant Godbreaker.Bane-Sidhe - The Bane-Sidhe was a Warlord-class Titan and war engine of Princeps Amasat during the Third War for Armageddon and the Battle of Helsreach. The Bane-Sidhe escorted the Ordinatus Armageddon to Helsreach so that it could be used to destroy the massive Ork Gargant Godbreaker. Near the Temple of the Emperor Ascendant Princeps Amasat decided to lure the colossal xenos Titan out, and although he succeeded, he and his Titan were destroyed in the process. Although it may seem ignominous that such an exalted God Machine met its end as bait, within the Legio Invigilata 's records, the war engine and its crew are regarded with the highest reverence. The Titan's wreck itself would be recovered in the following weeks, and the war engine would be restored to full operational capacity in fourteen months. Its destruction at Helsreach was marked upon its carapace with a six-metre square engraved upon its right shin, depicting a weeping angel over a burning, metallic skeleton.Draconian - The Draconian was a Reaver-class Titan and war engine of Princeps Jacen Veragon during the Third War for Armageddon and the Battle of Helsreach. It was the first Legio Invigilata Titan to be destroyed at Helsreach by the Greenskins when it was brought down by a crude but effective Ork trap, and then stormed by the xenos who slaughtered its crew.Bound In Blood - The Bound In Blood was a Reaver-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach. The Bound in Blood formed part of the Stormherald 's screen, and was destroyed during the Battle of Helsreach by fire from multiple Ork Gargants.Danol's Retribution - Danol's Retribution is a Reaver-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach, forming part of the Stormherald 's screen. The Princeps of the Danol's Retribution, along with that of The Ghoul, were noted to possess Honour Banners that would put a Princeps of their rank from any other Titan Legion to shame.The Ghoul - The Ghoul was a Reaver-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach and formed part of the Stormherald 's protective screen. The Princeps of The Ghoul along with that of the Danol's Retribution, were noted to possess Honour Banners that would put a Princeps of their rank from any other Titan Legion to shame. The Ghoul was ultimately destroyed by the Ork Gargant Godbreaker, lasting less than a minute against it.Talisman - The Talisman is a Warhound-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach. It, along with the Bane-Sidhe and the Hallowed Verity escorted the Ordinatus Armageddon so that it could destroy the Godbreaker.Hallowed Verity - The Hallowed Verity is a Warhound-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach. It, along with the Bane-Sidhe and the Talisman escorted the Ordinatus Armageddon to the city so that it could destroy the Godbreaker.Ironsworn - The Ironsworn was a Warlord-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach. The Ironsworn was destroyed in a trap similar to that which the Draconian fell to when it was retreating from the hive city following Princeps Majoris Mancion's death.Regal - The Regal was a Warhound-class Titan and war engine of Princeps Feerna during the Third War for Armageddon. The Regal was the first Imperial Titan to fall to the awesome firepower of the Ork Gargant Godbreaker.Ivory Fang - The Ivory Fang was a Warhound-class Titan and war engine of Princeps Haven Havelock during the Third War for Armageddon. The Ivory Fang was destroyed by the Ork Gargant Godbreaker while attempting to avenge the Regal.Sacrosanct - The Sacrosanct is a Warlord-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach.Executor - The Executor is a Warhound-class Titan that participated in the Third War for Armageddon and the Battle of Helsreach.Emperor's Shield - The Emperor's Shield is a Warhound-class Titan that participated in the Laiden Offensive. The Emperor's Shield achieved the highest kill-ratio of any Imperial Titan during the campaign. Its most notable kill included the Chaos Reaver-class Titan, the Butcher's Mirth.