Deag Grav

"If Sentinel holy blood is spilled on these grounds... you will lose all sovereignty here!"

- Deag Grav, taunting the Doom Slayer.

Deag Grav is a Hell Priest and the creator of the Well. He appears in Doom Eternal.

History
Originally a priest of the Order Deag, he created a scheme to ensure total victory over the realm of Argent D'Nur by making a false promise to a Night Sentinel that he would resurrect his fallen son in exchange for his help in enabling him and his cabal to get close to the Wraiths. Once the treacherous Sentinel did his job, the Hell Priest and his cabal utilized the Wraiths' own essence to create the Well that gave Hell the advantage in the war and finally absorbed the dimension of the Night Sentinels. While he fulfilled his promise after a fashion, the Betrayer's son was resurrected in the form of the Icon of Sin. Deag Grav was killed by the Doom Slayer after the Slayer slaughtered The Gladiator during the events of Doom: Eternal.