Sons of Antaeus

Sons of Antaeus
Founding 21st Founding
Successors of Probably Ultramarines
Chapter Master Unknown
Primarch Probably Roboute Guilliman
Homeworld Unknown
Specialty Being tuff nutters
Allegiance Imperium of Man
Colours Grey and black

The Sons of Antaeus are a Loyalist chapter of Space Marines who lead a very mysterious existence.

They are known to be particularly hardy and tough, being more impervious to damage than even other Space Marines, as well as being large even by Marine standards. They can shrug off blows that would instantly kill any other Astartes. This is due to the Adeptus Mechanicus going crazy in adding all sorts of extra stuff to harden them up; some whisper that their toughness is on par with the Death Guard Legion.

Perhaps due to this, they are notably not open to most Imperial authorities and avoid contact with them whenever they can. This is probably a smart choice, considering what happened to the other Cursed Founding Chapters.

Over a decade ago, these guys had their own rules in 3rd edition, found here (handily /tg/ updated for 6th edition)

The Sons are confirmed as being active as late as M41.9, so they're not doing as badly as some of the other cursed chapters. Also, while their toughness is often likened to Plague Marines, the process by which they were created bears more resemblance to Primaris Marines (made without Cawl's expertise) and could also explain their toughness. Primaris Marines are made using some of the process of creating Custodes. So, the Sons might have a similar connection to the Thunder Warriors.

Note: In real-world Greek mythology, Antaeus was a total badass renowned for being completely invincible while touching his mother. Sounds like a shit superpower, until you find out that Antaeus was actually the son of Gaea... AKA the fucking Earth. He, of course, abused this by challenging random passersby to Pankration matches (think MMA deathmatches) and taking their shit when they inevitably lost. This continued up until Hercules defeated him by picking him up off the ground and choking him to death.

Also antaeus means literally "opponent" in ancient Greek... read of that what you will.

A Son of Antaeus shows up in the novel Shadowbreaker, as a member of the Deathwatch no less. Called Androcles, he is described as being fucking massive; without armour he was about the size of a Marine wearing theirs. We also get confirmation that they are thought to be Ultramarines successors. Androcles also claims that despite being a part of the Cursed Founding, the Sons don't see themselves as cursed at all. He also claims the Sons of Antaeus have never been defeated "on solid ground". Sadly he is killed when he's ganged up on by two other Marines, one hoisting him into the air while the other stabbed him to death. It should also be noted that the other two Marines were wearing full power armour and one had a storm shield while Androcles only had recon armour and his combat knife, and he still put up a very hard fight. Notice that until they got him off the ground, they couldn’t win. How much of this is skill and how much might be...something else is questionable if you think about how oddly akin to the myth of Antaeus they seem to be.

Chapters of the Adeptus Astartes
First Founding (M29): Blood Angels - Dark Angels - Imperial Fists - Iron Hands - Raven Guard
Salamanders - Space Wolves - Ultramarines - White Scars
Second Founding (021.M31): Angels of Absolution - Angels Encarmine - Angels Porphyr - Angels of Redemption
Angels Sanguine - Angels of Vengeance - Angels Vermillion - Aurora Chapter - Black Consuls
Black Guard - Black Templars - Blood Drinkers - Brazen Claws - Crimson Fists - Destroyers
Doom Eagles - Eagle Warriors - Excoriators - Fists Exemplar - Flesh Tearers
Genesis Chapter - Inceptors - Iron Snakes - Libators - Lions Sable - Marauders - Mortifactors
Nemesis - Novamarines - Obsidian Glaives - Patriarchs of Ulixis - Praetors of Orpheus
Rampagers - Raptors - Red Talons - Revilers - Silver Eagles - Silver Skulls - Soul Drinkers
Storm Lords - White Consuls - Wolf Brothers
Third to Twelfth Founding
Astral Claws - Angels Revenant - Charnel Guard - Dark Paladins - Executioners
Flesh Eaters - Halo Brethren - Howling Griffons - Iron Knights - Mantis Warriors
Marines Malevolent - Night Swords - Sable Swords (initial)
Scythes of the Emperor - Space Sharks - Sons of Guilliman
Thirteenth Founding (M35): Death Spectres - Exorcists
Fourteenth to Twentieth Founding: Angels of Fire - Avenging Sons - Celebrants
Twenty-First Founding
Black Dragons - Blood Gorgons - Fire Hawks
Flame Falcons - Lamenters - Minotaurs - Sons of Antaeus
Twenty-Second to
Twenty-Sixth Founding (M35-M41):
Angels of Vigilance - Celestial Lions - Dark Hunters - Disciples of Caliban - Emperor's Spears
Fire Angels - Imperial Harbingers - Iron Lords - Knights of the Raven - Marines Errant
Mentors - Fire Claws/Relictors - Star Phantoms - Subjugators
Ultima Founding
Angels of Defiance - Blades of Vengeance - Castellans of the Rift - Fulminators
Knights Cerulean - Knights of the Chalice - Knights of Thunder - Necropolis Hawks
Nemesors - Praetors of Ultramar - Rift Stalkers - Silver Drakes - Silver Templars
Sons of the Phoenix - Storm Reapers - Umbral Knights - Unnumbered Sons
Valiant Blades - Void Tridents - Wolfspear
Unknown Founding: Absolvers - Accipiters - Adulators - Angel Guard - Angels Eradicant - Astral Knights
Blood Ravens - Blood Swords - Brothers Penitent - Crimson Castellans - Crimson Consuls
Crimson Scythes - Dark Hands - Dark Sons - Death Eagles - Fire Lords - Guardians of the Covenant
Graven Spectres - Hammers of Dorn - Harbingers - Hawk Lords - Invaders - Iron Talons
Jade Dragons - Knights of Blood - Knights Unyielding - Marines Exemplar - The Nameless
Night Watch - Rainbow Warriors - Reclaimers - Red Hunters - Red Scorpions - Red Seraphs
Sable Swords (refounded) - Solar Hawks - Sons of Orar - Star Dragons - Stormwatchers
Storm Giants - Storm Wardens - Valedictors - Viper Legion - Vorpal Swords (and the Judged)
Unsanctioned Founding: Consecrators - Sons of Medusa - Steel Confessors
Others: Adeptus Custodes - Astartes Praeses - Deathwatch - Grey Knights