>>96310419
They have a ton of personality. They're the WW1 legion (along with IW). They hate psykers. They love chemical weapons that make even the Primarchs uncomfortable. They truly believe that the civilizations they melt in agent orange deserve it. They have a death/reaper theme as well, they have some officer infighting like IW because they want to show off in front of daddy. Said daddy liked to play favorites with his praetors, leading to more infighting. But they also had Death Shrouds, which were basically un-personed. Imagine how it must feel to go from being a showoff general fighting for Morty's attention, to being a faceless reaper who inst' even allowed to use his own name.
As for the other legions, they had a sense of superiority over them, but it wasn't completely unjustified. They could stand casually in fields of noxious gases that would make marines from other legions kneel down and puke. Hard not to feel a sense of superiority. Imagine being comfortably clearing a trench with your herbicide sprayer and the UM ally next to you is a huge pussy who needs an industrial grade respirator to stand near you.


Also you WILL die of cancer eventually if you're a destroyer, their extra special juice was THAT BAD