Hades was the god of death. As such he was one of the only gods allowed in the mortal realm. He would take souls and guide them to the system. The system would then take them and his job would be done. He had no idea what the system was, only that it was connected to the many different worlds. Occasionally he kept souls for himself however, and turned them into undead. He had created many undead over the millennia, some were ok, most were failures. They would be puppets that wouldn't even move unless he ordered them to.
The most powerful, he would send to test against the other gods champions. But he longed to create the perfect undead. And not long after he found out that even Artemis was making a champion, he found the perfect materials. At first he had thought to improve upon one of his old creations, a lich he threw away a few thousand years ago. But then he found his new materials in the southern jungles. She was a young girl, in her teens. And she was a mutant with superhuman strength, even though she had never used chi.
She had been left in the jungle, and for the last month used her strength to attempt to survive. But she had slowly accumulated wounds during the fights. And with no way to treat them, the wounds festered and began to wear the girl down. He was actually surprised she managed to survive here a month with no survival instincts. As he looked down at her, she was still in the process of dying. But she would only last a few moments at the most.
Hades began to slowly inject his power into the girl, and after he believed she had been adequately corrupted he asked her,
"Do you wan to live?" The girl looked at him and made no response. Hades continued to ask knowing his corruption would make her comply.
"Don't you want revenge? Against the family who left you here? The family who abandoned you?! Don't you want power?!" As the girl heard Hades words she slowly started to nod her head. Hades grinned. As he talked to her he had been thinking about what kind of undead she should be, but as he looked through her memories, he found something. He leaned over her, as if to embrace her and bared his neck.
"Drink child." Completely under his control now, she used what little of her strength was left, and bit into his neck. She had to rip and tear the flesh, but as the black tar like blood surfaced she happily drank it.
"Good, good child drink it all." As she drank, changes slowly spread throughout the girls body. The many wounds she accumulating closed instantly. Her skin became paler, and paler, until she was almost as white as a corpse. Due to the shock of the wounds closing she gasped and let go of his neck. When she looked down, the flesh had already knit itself back together. Seeing that had not drank enough of his blood, Hades then told her,
"Go ahead, drink your fill." The girl getting permission opened her mouth yet again. But this time she used her extended canines to directly bite into where the jugular was supposed to be. As she continued drinking the changes kept happening. Her ragged, dirty, brown hair, had regained its previous luster, and started turning a lighter silver color. Her eyes were closed as she continued drinking Hades blood, but when she opened them they had become a deep Crimson color. Hades smiled as the changes continued in the girls body.
"That's right drink my champion."
"My tool"
"My Emily"