What's Wrong With Each Legions Gene Seed? (Warhammer 40K Lore)

What is wrong with each Space Marine Legion's gene-seed in Warhammer 40K? This video explores the genetic flaws, mutations and inherited curses of the original Space Marine Legions — from the Blood Angels' Red Thirst and Black Rage to the Space Wolves' Canis Helix, the Thousand Sons' Flesh Change and the Raven Guard's Sable Brand. We also cover missing Space Marine organs, the Emperor's Children's poisoned gene-seed, the World Eaters' Butcher's Nails and why some Traitor Legions had perfectly stable genetics before the Horus Heresy. Not every Legion was genetically flawed. And not every mutation was a curse. #warhammer40k #spacemarines #geneseed #horusheresy #warhammerlore ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TIMESTAMPS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 00:00 How Gene-Seed Works & the Unflawed Legions 03:09 Missing Organs & Genetic Mutations 06:34 Emperor's Children and the Traitor Legions 10:21 Sable Brand, Wulfen & the Flesh Change 13:17 Blood Angels — Red Thirst & Black Rage ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SOURCES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ▸ Codex: Space Marines — Gene-Seed and Legion background ▸ Codex: Blood Angels / Codex: Space Wolves ▸ Fear to Tread — James Swallow ▸ Fabius Bile trilogy — Josh Reynolds ▸ Night Lords trilogy — Aaron Dembski-Bowden ▸ Battle of the Fang — Chris Wraight ▸ Horus Heresy — Legion genetic flaws and mutations