The history of the Striking Scorpions is shrouded in infamy from the Aspect’s very beginning. The founder of their Aspect Shrine, Arhra, was lured to darkness and betrayed Asurmen and the other Asurya, the first Phoenix Lords, by bringing daemons into the First Shrine to wage war upon his fellows.

Those loyal to Asurmen were defeated and scattered across the stars, but Arhra himself would eventually flee into the Webway, becoming “the Fallen Phoenix who burns with the dark light of Chaos.”

In his place rose Karandras, a Striking Scorpions Exarch and Arhra’s greatest pupil, who would give the Striking Scorpions their current form by tempering the murderous nature instilled by their former master with the patience necessary to become consummate hunters.

Karandras would be responsible for spreading this new teaching and installing new Striking Scorpions Aspect Shrines on the Aeldari Craftworlds.

Karandras, called “The Shadow Hunter,” is the Eldar Phoenix Lord of the Striking Scorpions Aspect Warriors. Legends of Karandras the Shadow Hunter tell of one of the most mysterious of all the Phoenix Lords.

No one knows where he originally came from or where his shrine originally lay, but perhaps it was on one of the small Craftworlds which survived the Fall but was destroyed soon after. 40K Wiki