Skarbrand

The Bloodthirster Skarbrand, known also as the Exiled One, Wrathful Reaper, and Drinker of Blood, was once the greatest of all Khorne's Daemons. An eternity of battle in the Blood God's name had brought Skarbrand victories uncounted. It was he who tore down the gates of Slaanesh's first palace and visited ruin therein. It was he who led the eight Hosts of Murder to their triumph over the combined armies of the other Chaos Gods. In all the endless years of Khorne's existence, no other had piled so many skulls before the Skull Throne, or spilled the blood of so many warriors and innocents alike. Thus did Skarbrand enjoy Khorne's favour like no other.

Alas, so proud was Skarbrand that it was a simple task for Tzeentch to fan the embers of his hubris. One dark day, when Khorne's back was turned and his attention elsewhere, Skarbrand's fierce pride grew hot and, blinded by rage, he smote the Blood God a mighty blow. Powerful beyond measure was Skarbrand, and he had toppled cities with but one blow apiece, but even he could not pierce Khorne's brazen armour. Only the smallest of chinks was cut in the Blood God's armour, but even this was sufficient to draw the terrible fury of Khorne's gaze.

Incandescent with wrath, Khorne seized the Daemon by the throat. The Blood God cursed Skarbrand's name and choked all personality from him, leaving only the bottomless rage that had caused him to attack. Climbing the uppermost tower of the Brass Citadel, Khorne cast forth his arm and hurled the Daemon deep into the Realm of Chaos, banishing the Bloodthirster from his presence. For eight days and nights Skarbrand plummeted, a fiery comet of ill-omen streaking across the unchanging sky. The impact of the Bloodthirster's landing gouged a canyon in the landscape and left his wings tattered and torn. Since that fateful day, Skarbrand has wandered the mortal and immortal realms, drowning his sins in the blood of the slain — though he no longer has the wit to fully understand why.

Frozen in the moment of that rage-spurred betrayal, Skarbrand has become wrath incarnate, a restless fury that cannot be stopped. Wherever Skarbrand treads, order and discipline are replaced with anarchy as those in his path drown in feelings of empty loathing and unrestrained savagery. Even the most rational of beings cannot resist the corruption of Skarbrand's madness. Fast friends and firm allies tear at one another with wild abandon. Craven and brave beings alike claw at their foes without regard for their own lives. Through this anarchy, Skarbrand runs rampant, twin axes hacking and cleaving until there is no one left to kill. His tortured roars echo around the battlefield, waves of pure rage infused with enough force to shatter buildings and pulverise flesh.

In all of history, there have been none to serve the Lord of Skulls as completely as Skarbrand. He has taken mountains and mountains of skulls for the Blood God, and filled vast oceans with gore. He has shaken the foundations of eternity with his wrath and left a trail of slaughter across existence, yet still Khorne refuses to rescind his hated decree. There is little regret in the Blood God's black heart and he spares none for Skarbrand, who in tortured exile serves the Lord of Skulls more completely than ever.

Source

 * Warhammer Armies: Daemons of Chaos (8th Edition) -- pg. 36