Not even mentioning that trying to improve on the Emperor's work was still basically Heresy in the Great Crusade, even before they got really in to calling things Heresy.

And we have Fabius anyways, where are our improved abomination marines?

Abominations are correct. Fabius is a genius in his art of creating failures.

Well he did make a clone of Horus from Horus' body
And it was seen as perfect enough to endanger abaddon's legitimacy as Warmaster

It was still a failure though because Abaddon could eliminate the cloned primarch.

Well they threw an entire legion against Fabius, your logic is flawed and idiotic

View: https://www.youtube.com/watch?v=oFmNgiEgPoQ

I'm just trying to have a conversation here and you start the insult train. Dear God I hope there aren't as many argumentative oafs as you. To explain my logic I do agree that Fabius made Horus perfect enough to pose a threat. But it was a failure because it was not the Primarch. This clone was not Horus and here's the reason why. While its aesthetics and overall strength may have been similar it had its abilities limited so Fabius could control him. Giving the creation power over its master is a rather bad idea is it not?

He succeeded in cloning a primarch, it was not a failure however it wasn't a perfect success

Well Fabius is a Emperor's Children so i'd say its safe to assume anything short of perfection is a failure for him, well at least in a sense.

EC is his birth chapter but he left them because he somewhat disagreed