Lorgar
Lorgar, also known as Lorgar Aurelian and The Urizen, is the Primarch of the Word Bearers legion, the extra religious legion of Kheyos Sphess Mahreens. He is credited within 40k fluff for being the first Primarch to fall to the Ruinous Powers. Yes, we know what you're thinking and no, Horus was just the first Primarch to be public about it. Lorgar was the first to be corrupted, though this wasn't noticed as he was very secretive about it.
Pre-Heresy
Like the rest of the Primarchs, Lorgar was scattered through the Warp by the Chaos Gods. Landing on Colchis, a Feral World which worshipped the Chaos Gods, Lorgar was taken in by the priests of the Covenant, the religious order of Colchis, primarily the priest Kor Phaeron. His psychic talent manifested in visions of a messiah coming to Colchis. This pissed off most of the Covenant, so Lorgar and Kor Phaeron organized a purge. By the time they were done, the Emperor of Mankind and Magnus the Red arrived on Colchis and Lorgar hailed him as his lord. After about a month of celebrations, the now slightly annoyed Emperor appointed Lorgar head of the Imperial Heralds, which Lorgar renamed the Word Bearers.
During the Great Crusade, Lorgar loved the Emprah. Like really loved him; in fact, he was the first Primarch to venerate the Emprah like a god. He loved the Emprah so much that he wrote an awesome book about how great Emps was and built a fuckhueg cathedral to him, along with fuckheug cathedrals in every last world the Word Bearers conquered. Empy caught wind of all this and was not amused, since Lorgar's religiosity threatened to undermine his super sekrit Operation Starve-the-Fuck-Out-of-Chaos. He made Lorgar stop his god worship in a very good-daddy kind of way. By having the Smurfs destroy a city that epitomized Lorgar's accomplishments, then using his Psyker powers to make Lorgar and the entire XVII Legion to kneel before the Emperor, Roboute Guilliman, and Malcador the Sigilite. Destroying an entire city is one thing, but being forced to kneel down before Great Grandpa Smurf was beyond forgivable.
Severely humiliated and racked with self-doubt, Lorgar punched Guilliman in the face, and began listening to Kor Phaeron (now First Captain of the Word Bearers) and First Chaplain Erebus about how there might be other Gods that would accept worship. This in turn lead to the Lorgar traveling to a primitive planet called Cadia where he learned the truth about the Emprah's Imperial Truth. The rest is history heresy.
Before the heresy Lorgar was widely considered the weakest Primarch as both a fighter and warlord, preferring to act more as a diplomat and preacher. His actions during the Heresy proved everyone wrong. When Lorgar first toured the Eye of Terror, he was forced to fight An'ggrath the Unbound (who is to Bloodthirsters what Bloodthirsters are to Gretchin) in order to prove himself worthy of becoming the champion of Chaos Undivided. He also got a visit from Kairos Fateweaver, informing him of his possible futures in a one-time deal where that Lord of Change would only speak the truth, primarily involving his future campaign on Calth, and a very important choice to make.
His plan of attack on Calth resulted in beating the shit out of Ultramarine forces four times his army's size, proving Lorgar was also a damn good warlord. Even the fact that his Calth attack force was finally screwed was part of his plan: the entire point of the Calth war was to purge the Legion from ignorant hotheads who put revenge and hatred over Chaos worshiping, in addition, Fateweaver explicitly told him that Roboute Guilliman had to survive the campaign on Calth, which would cause him to become paranoid & doubtful and therefore start summoning his forces to Macragge to create Imperium Secundus which would starve Terra of resources and possibly swing the war in the direction of Horus. Killing Guilliman would mean that the separatists would never get that chance, so Lorgar had to make a choice between slaying his most hated brother, or sparing him for a shot at something greater.
By the way, in the Horus Heresy novels its seen he actually cared a lot for all of his brothers, for example he was good pals with Magnus, which is more than you can say about some loyalist primarchs, even when grudging with his brothers he was quite diplomatic, he sincerely believed he could eventually convince everyone else about his point of view on the Emperor's divinity, also, he worked to make Colchis a decent place to live, and it seems like whenever he conquered a planet he took his time to convince the population of the imperial rule to the point rebellion became an imposibility, even if he wiped out the Convenant you may remember they were Chaos worshipers (yeah we know the irony but hey, what else imperials are supposed to do?). So yeah, it would have been far more sensible for Emprah to put this guy in charge of the Imperial propaganda machine or diplomatic body and overlook his religious views.
He was also terrifyingly powerful psyker, but refused to use his gift for the same reasons. He ceased this emo shit after falling to Chaos, turning into a badass sorcerer able to rival Magnus, or at least Magnus's psychic projection, which is still far beyond any 40k-level monster-psyker capabilities. In fact he was third or forth most powerful psyker in the galaxy: second to only Big E, Magnus and maybe Malcador.
He also bore the greatest physical similarity to the Emperor: under his golden tattoos he looked exactly like a younger version of Big E's true form (yeah, yeah, da Emprah told Corax that he had no true form, but then he also said that daemons were minor xenos pests, so figure that out yourself). He is has also dabble in Trolling shown in one scene in Know No Fear, where he's pretty blatantly trolling Guilliman. Lorgar: Have you lost your temper, Roboute? Guilliman: I am going to gut you. Lorgar: You have lost your temper. Take that Pappa Smurf
Post Heresy
So now he's the Daemon-Primarch of the Word Bearers, the guys who make the rest of the Chaos Space Marines look like all around swell secular humanist types. They're kind of like Jehovah's Witnesses except instead of knocking on your door and telling to you about Jesus they knock down your door and ask you which end of a daemon summoning you want to be on. This tends to make Chaos's otherwise awful selling pitch seem oddly compelling. He also has a particular hatred for atheists, so he loathes his atheist daddy Emprah and the weeaboo space communists more than he hates everything else.
In a supreme twist on irony, the Ecclesiarchy of the Imperium (which is the primary target for the Word Bearers during conquest) derives most if not all of their religious texts from Lorgar. That Bible they administer to citizens daily? The prayers quadrillions of soldiers and civilians utter daily in an effort to believe? That devotion to the Emperor? All fostered and nurtured by Lorgar. All brought about by his and his Legion's sheer devotion. In short, Lorgar is responsible for both the Heresy that marked the end of the Imperium's golden age, and the only thing that would save Humanity in its long evolution to a fully psychic race. That being said, Lorgar is actually so ashamed of the Lectitio Divinitatus (the primary holy book of the Imperium he wrote) that bringing it up is a surefire way to have your body and soul obliterated in such horrific ways that no words exist in the myriad tongues of the universe to fully encompass the unholy rape you would receive.
Since the Heresy, Lorgar's notable achievements consist of becoming a Daemon Prince of Chaos Undivided (and, yes, that is technically possible) before doing sweet fuck all for several millenia. Seriously, at least Magnus pretends to be plotting the downfall of Man or something while he sits in his tower screaming "JUST AS PLANNED" at the top of his lungs whenever he pours milk over his daemon cereal, and he actually got off his ass and led the Thousand Sons to wreck the Space Wolves' shit on their own home planet. Lorgar, though? The lazy fuckwit has just been holed up on Sicarus meditating and traversing the warp, secretly "Crying and weeping in guilt for what he has done" quote on quote by our spiritual liege himself, Rowboat Derpyman. Congratulations, Chaos Gods, you have created the Lovecraftian equivalent of that unemployed asshole friend who won't get off your couch and who is secretly emo.
Apparently he was actually working on some new daemon summoning techniques, which he taught Abbadon before the Thirteenth Black Crusade.
On The Tabletop
| Pts | WS | BS | S | T | W | I | A | Ld | Sv | |
|---|---|---|---|---|---|---|---|---|---|---|
| Lorgar Aurelian: | 375 | 6 | 6 | 6 | 6 | 5 | 6 | 4 | 10 | 2+ |
Lorgar may be the cheapest of the Primarchs, and he may have one the lowest statlines amongst them, but do not let this fool you - used properly he can be of the most powerful Primarchs, rivaled only by the Warmaster himself.
First off, he magnifies the strong points of his legion: Word Bearers are already quite brave with 3d6 morale tests (discarding the highest dice). Lorgar makes them all Ld10, Stubborn, and immune to Fear, effectively turning them into the bravest non-fearless army in 30k. Hell, even in 40k none could rival their resolve (apart from Tyranids until you kill their synapse). As Word Bearers are quite good in melee with their compulsory psyker-chaplains and re-roll 1s for sweeping advance, Lorgar makes them even better, granting +1 to charge distance and combat resolution. He also confers his crusade rule to any unit he joins, further increasing the chances of successful sweeping advances if they win in melee.
As for Lorgar himself, he has a S8 AP2 MС power maul with Smash, a S6 AP3 pistol for +1A and 2+/4++ armour which grants 3++ against witchfire and force weapons, but the next to last one is a bit redundant, because Lorgar would likely Deny any spell targeted at him with his rerollable DtW on 3+. He can also force one model to reroll all 5-6 to hit and to wound against him once per game, which is obviously his "I win" button in challenges.
Lorgar's main strength is that he's a ML2 psyker with access to Telepathy and Telekinesis. Though he got a handicap, rolling an extra D6 on psy tests and choosing the highest two, this matters very little, because he can (and should) be upgraded to ML3 with ability to roll an extra D6 on psy tests and choose the lowest two, as well as picking powers manually at the start of the game, instead of randomly rolling them. This is where he starts turning into rape machine, as both Telepathy and Telekinesis have quite a rapetastic set of powers normally compensated by the fact that there's only a small chance of getting the good ones. A combination of Invisibility and Terrify allow him to reliably win any melee (even against other primarchs) and then sweep them with no problem, as his mace concusses them to I1, and Lorgar himself gets +D3 to sweeping advance from his Crusader USR on top of his reliable I6. Feel free to enjoy the expression on your opponent's face when his Angron charges your Lorgar, fails to land more than two hits, loses assault, shits himself, tries to run away and gets caught and smashed to death in one phase. Just be mindful of Perturabo- he's immune to Concussive weapons so he might be able to turn the tables on you IF you forgot to make Lorgar invisible for some reason, otherwise, like most other primarchs, Lorgar will have no problem dealing with him, as when he's invisible, Perturabo need's 5+ to hit (that you can make him re-roll), then 3+ to wound, whereas Lorgar will need 3+ to hit, then 2+ to wound, and if Perturabo brings his hammer he's initiative 1 anyway, so you'll wear him down and kill him outright far before he'll kill you.
New Rulebook time! Terrify no longer takes away Fearless, so unless it gets FAQ'd, Lorgar might struggle a bit against some of the more close combat focussed Primarch's (like fully powered up Angron), but overall should still be able to wear them down and win in a war of attrition, escecially since under Invisibility he can now only be snapfired and is hit on melee only on 6+, making him the single most unkillable model EVER, to the point that entire gunlines, backed by multiple Titans can't even scratch him.
| 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 |