Editing Castellan Crowe (section)

==Samples of the Blade's True Power==
Whatever entity is trapped inside the blade, it does not want to be under the control of the four known chaos deities. Though it is not beyond using their own machinations to engineer its escape, even working to partially fulfill the other deities' plans just to create an opportunity for it to take advantage of.

The Blade will call mortals and even other Chaos entities to it, promising invincibility and glory even to the servants of the other dark powers. This is almost always successful, as daemons are immediately drawn to the blade's call regardless of the orders of their former masters, and mortals take very little to convince.

When wielded by a mortal, the Blade's consciousness immediately and completely overwrites the consciousness of the wielder, beginning the process of transforming the physical body into a kind of armored shadow-like creature that only the blade knows the origins of. It likes to keep a portion of the wielder's soul intact, though, just so it can taunt it on its colossal gullibility and fuck-up.

In the presence of the Blade and its wielder, other people are constantly under assault by its influence. No longer needing to seduce potential pawns to help it escape, the blade simply overrides the will of whomever is unlucky enough to catch a glimpse of it. One look is all it needs to overwhelm any mental resistance.

The blade can incite violence and obscene rituals if it so chooses, but it does not need these in order to gain power. All it needs are more followers. The blade's capability multiplies with each mind it takes over (the more people it controls, the more people it can control), enabling it to bring millions of people under its will through a chain reaction of influence.

The sheer speed at which the blade can bring more people under has no equal even among the other dark powers. Meanwhile, the people the blade enslaves do not become blood-thirsty fanatics or raving pleasure seekers either, they march as a single force, silent and mindless. These armies are under the blade's direct control, aiming with the blade's supernatural precision and cutting with the blade's weapon mastery.

Inside the blank-staring bodies with their mouths contoured into silent screams, the souls of the enslaved are trapped; constantly taunted by the blade's laughter and telepathically tortured.

Which begs the question of why neither Horus nor Abaddon were 'called' to use the Blade?

(It would have won the Horus Heresy right then and there without allowing Horus to rebel or give the Emperor the chance to blow up Terra.)

(Abaddon's 12th Black Crusade would have conquered the Imperium within a year if he was controlled by the Daemon Sword.)

Even Huron Blackheart and Kranon the Relentless as well as their Chaos Warbands would have conquered the Imperium own their own if they were corrupted by the Blade!

The answer is probably that the Chaos Gods don't want the blade to control anyone and would actively take steps to prevent it, considering that the entity in the blade itself takes control over even demons from their masters and creators.

The blade may also not call to those because if you are a Chosen of a Chaos God (and a Primarch to boot), your will is probably strong enough to resist it. The idea that it would reach out to those corrupted by Chaos presupposes that the leaders of Chaos are easily swayed. It can be argued that if your mind is weak enough to be swayed you never would have survived long enough to make it as far as Abaddon.

Additionally, it may be that the Blade itself does not want to call to Huron or Abaddon, or that it was not close enough to bring its full influence into play. We know that to completely take over the host body it needs physical contact. Once taken over, the host itself functions like a walking antenna for the blade's influence. One look at the host and the blade will overwhelm most mortal minds.