Karontor

Karontor was the giant god of disfigurement and hate, and the chosen patron of the malformed Fomorians and the more villainous Verbeeg. Exiled in ages past for his acts of spiteful envy, Karontor plotted his revenge from the cold depths of the Red Prison, driven by his malice towards all Giantkind.
Karontor was a misshapen god who, when manifesting as an avatar, appeared to be an 18 feet tall, uniquely grotesque Fomorian, so utterly abhorrent that his presence was reviled by practically all races. He dressed in rotting, reeking furs, and was known to wield a club, but could also take the form of a huge Winter Wolf.
In the myths of non-evil giants, Karontor was once a handsome and radiant god before he became envious of his eldest brother Stronmaus, his bitter jealously warping his physical form. Unlike Grolantor, who was scorned by sibling and parent alike, Annam did not truly detest Karontor despite exiling him to darkness. Annam was just tired of dealing with the ceaseless fights between his children, and after Karontor lashed out at his siblings, he sent him away simply because it was the most convenient solution, giving the deformed god's grudge some level of justification. 
Aside from Grolantor, Karontor was the most hated foe of Clangeddin Silverbeard, the dwarven god of battle.
Karontor was the youngest son of Annam All-Father in the Giant Pantheon, and part of the third generation of offspring known by other giants as "the runts". His mother was not the unnamed sky goddess who gave birth to the other sons (Stronmaus, Memnor, Surtr, Thrym, Skoraeus, and Grolantor), making them his half-brothers, and his sisters included the goddesses Hiatea, Iallanis, and Diancastra.
Personality
In contrast to a Giant god like Grolantor, who was often portrayed by most giant races as primarily being stupidly prideful and evil secondarily, Karontor was a deity for whom wickedness took precedent over everything else. He seemed uncaring towards the Prime Material Plane, save for his hatred of Giantkind, and he only sent avatars to express his unpredictable outbursts of murderous rage. This hatred, however, was merely a reflection of his own deep-seated feelings of self-loathing, consumed as he was by endless bitterness and miserable introspection.
Powers
Karontor's banishment at the hands of his father stripped of his own spellcasting abilities, but he could still take the form of a Winter Wolf if given a minute to do so. In that form he was much faster, and once each day could breathe out a cone of cold.
Realm
Karontor's resided in Carceri, an outer plane that held exiles and traitors and which fostered self-hatred and despair. He dwelt on the third layer, Minethys, a sunless desert of cold, cutting winds that housed those who hoarded what could have benefitted those around them. Within Minethys was Karontor's realm, known as the Rack of Injustice, where sat a mausoleum of Beast and Giantish bones.
The Fomorian petitioners of Karontor occasionally ventured beyond the Rack of Injustice to exact vengeance in his name. Packs of ever-hungry Winter Wolves lived in the desolate, frozen, windswept plain that surrounded the realm, waiting for Karontor's signal to rage across the miles beyond.

Aspects/Aliases Karantor
Pantheon
Giant Pantheon 
Gender
Masculine
Power Level
Lesser Deity
Alignment
Neutral Evil
Symbol
Winter Wolf's Head
Home Plane
Carceri/Minethys
Realm
The Rack of Injustice
Portfolio
Beasts, Deformity, Hatred
Spheres
All, Animal, Combat, Healing, Protection, Sun, War
Worshipers
Fomorians, Verbeeg