Angron the World Eater.

'' You kept that mule Kor Phaeron. Russ kept his kin-friends. The Lion kept Luther. Humans - brothers and foster fathers - saved and raised into their Legions’ ranks once they were found. But not me. Not Angron, no. Did the Emperor teleport his gold wrapped Custodians down to help me and my army? No. Did he free my Legion and order them to battle, to fight alongside me? No. Did he save my brothers and sisters the way he spared and honoured the Lion’s closest kin? The way he honoured Kor Phaeron? No, no, and no. No mercy for Angron. Angron the Oathbreaker. Angron the Betrayer. Did he stay on my homeworld for weeks, as he did with you on Colchis, Vulkan on Nocturne, and Russ on Fenris? No. No contest of strength and will with the Emperor for Angron the Slave. No weeks of laughter and joy and healing the world’s wounds. Instead, he stole from me the life I’d lived and the death I’d earned. By “saving” me he made me break my oath to the brothers and sisters who needed me.

No. I was never truly saved. I died that day. Angron the Gladiator. Angron the Liberator. Angron the Sword-brother. He is gone.
Now what you see is all that remains.
I am Angron the World Eater. ”