Corvus Corax

Corvus Corax is primarch of the Raven Guard, a liberator raised in the mines of Deliverance who never stopped thinking like a slave with a key. Isstvan V gutted his Legion. He spent the rest of the Heresy trying to grow it back, and some of those experiments should not have been tried.

After Terra he walked into the Eye hunting his traitor brothers, a shadow among worse shadows. Kiavahr still turns under Deliverance. The Chapter still strikes from the dark and leaves before the hymn starts.

He has been gone long enough that some of his sons pray to him. He would have hated that. It has not stopped them.