Horus

If this reminds you of every Baroque and/or Christianity-related painting from the Renaissance up until the 19th Century, good. You're paying attention.

Horus Lupercal, the Warmaster. Here shown prior to getting his Chaos on.

“Better to reign in Hell than to serve in Heaven.”

-Lucifer in John Milton's Paradise Lost

"Let the galaxy burn."

-Horus Lupercal

"'I have sinned,' he said, 'for I have betrayed innocent blood.'"

-Judas Iscariot, Matthew 27:4

Horus Lupercal, The Breaker of Tyrants, The Warmaster, The Arch-Traitor, (more often known as just Horus or Fucking Horus!) was the Primarch of the Luna Wolves/Sons of Horus/Black Legion, and the main figure in the event known as the Horus Heresy (this is NOT a dead giveaway. Oh no). Once the most favoured son of his father the God-Emperor of Mankind, he began to resent his father's treatment of him and other Primarchs, and believing that the Emperor's secret plan was to become a god using his own Primarch sons as a tool (when in fact all this is due to the lies of a certain religious zealot), eventually turned to Chaos. If you really need to be told any of this, what the fuck are you doing on /tg/ in the first place? This is such common knowledge, that the outlines of the Horus Heresy and every bad ass taking part in it, are more or less engraved in the mind of every /tg/ reader. Much like the Emperor being crippled and the Imperium devolving into a bureaucratic grimdark empire, the death of Horus and the placement of Abaddon as the most influential Chaos champion ever, turned the Chaos legions from a genocidal force bent on utter domination for the glory of Chaos into a Saturday-morning cartoon villain organization. Also his armour made him look like an egg.

It is argued that Horus was not actually evil but possessed by the Chaos Gods or that he was a victim of Lorgar, who is officially labeled as "The First Heretic." However, he was still a massive dick. Hence the common saying in the post-Heresy Imperium: "Of all the mighty Primarchs, Horus sure was a dick."

But long story short, the Imperium got into this fucked up state because this guy had daddy issues (honestly, who didn't?), he got scammed by religious nutjobs, and because the Chaos Gods showed him horrific visions of the future, supposedly under the Emperor's rule. Lol-irony.

Horus VS other Primarchs:

Horus wins. Against any other Primarch. That's it. He beats ALMOST any other opponent he gets pitted against.

No seriously, what did you expect? With WS 8, 6 Attacks with a S7 AP2 lightning claw that cripples whoever survives his onslaught or a MC S10 Thunder Hammer and 2+/3++ he can destroy any other Primarch relatively safely. He's clearly built to be the hardest dude around and his gear is borderline unfair. Disabling Strike is just disgusting and it's directly intended to make sure he stays the top dog no matter how angry, pretty or well equipped anyone else is. The only one who could really be a threat is Lorgar with Precognition, but even he will go down with the Talon as in just 3 rounds he will mathematically be brought to WS and S 4, wich means that even with Precognition he will struggle to wound Horus, while Horus will gain +d3 attacks for his Sire of the Sons of Horus rule. Also, by the end of Round 4 he should be WS and S 3, meaning he will hit and wounds Horus on 5s. At least Lorgy could tie him down till the end of the game - other primarchs could not do even that. Ouch, that Talon really hurts. So, yeah, no one can actually fight 1 on 1 with the Warmaster, barring some incredibly lucky rolls. Better hope for Sanguinius to come fast...

That or just join the Omnissaiah. Thanks to HH6: retribution, the mechanicum has it's primarch-like character. Anacharis Scoria, lord of Xana and the first of the Dark Mechanicum, boasts a brutal statline with T6 and 5W. He's an eternal warrior with FNP and IWND and a 2+/3++. But the key of his possible victory is the Vodian Sceptre, a weapon that auto-deals d3 wounds, ignoring the FNP and forbidding IWND against them. All hangs in wether or not he's able to tank the first round (Horus will be using the talon as there's no benefit in using world breaker)

If that tanking happens, Scoria wins. If not, well, Horus is down to its last wound due to fighting a model worth 200points less than him. Same goes for Scoria, he will take 4 wounds if he wins. AVE OMNISSAIAH!

The Primarchs of the Space Marine Legions
Loyalist Corvus Corax - Ferrus Manus - Jaghatai Khan Leman Russ - Lion El'Jonson - Roboute Guilliman Rogal Dorn - Sanguinius - Vulkan
Traitor Alpharius/Omegon - Angron - Fulgrim Horus - Konrad Curze/Night Haunter - Lorgar Magnus the Red - Mortarion - Perturabo