Eventually, their loyalty was sold to the highest bidder; in AD 193, they famously auctioned off the entire Empire to Didius Julianus. The Triarch Praetorians (Warhammer 40k: Necrons) Narrative Piece

They were the shadow behind the throne, the only armed force allowed within the sacred walls of Rome. While they were sworn to protect the Emperor, they often became the ones who decided who lived to wear the purple.

They wield Rods of Covenant , ancient staves that can fire beams of molecular-disintegration energy or crush armor in close quarters.

Their standards often bore the Scorpion , the zodiac sign of their patron.