Afriel Strain

Sure they may destroy an entire Tank division by themselves. Just don't expect them to survive after the battle is over due to...unfortunate accidents...

Afriel Strains is what happens when the Imperium tries to create something other than a power armored Mary Sue. They are considered a sub-species of Humanity.

The Afriel Strain is sometimes called as the 'Ultimate Human' via a shadowy experimental process made from the Mechanicus which used genetic material from a number of the Imperium's greatest heroes to make unlimited clones of them. Examples incude the legendary Macharius being among the individuals replicated in this manner. While the idea of an entire army composed of Macharius, Sly Marbo, Straken, Ciaphas Cain and Yarrick may sound Awesome to the point of being a borderline Mary Sue. The Strains themselves...seem to suffer a severe case of bad luck. In each case when the Afriel Strain has been fielded, it has met with a period of success - for its soldiers are undoubtedly superior - followed by a rapid decline and destruction of the regiment. It got so bad to the point that some Mechanicus adepts believe that their cloned genetic makeup may interface with the Warp in some way to alter the laws of probability. Why the regiments commit acts of mass death by unknown mishap is still officially unknown. Nonetheless, whoever the creators of the Afriel Strain may be, they continue to experiment, fielding their "perfect soldiers" across the war zones of the Imperium.

Afriels are normally albinos, with pale alabaster skin, pale hair and colorless eyes.

You can try fielding them via using proxies and changing their rules to They Shall Know No Fear, It Will Not Die and Rage as well as a strong initiative and leadership checks. Although it could be off set with a severe case of Imperial Plasma Weapons, as in they will have a chance to suddenly drop dead...for no reason.

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  A Mary Sue of such untold proportions that it loops all the way back to fail.