This is Balrog, the main villain of a new series in the making.

Lord Balrog, otherwise, known as simply Balrog, is the power-hungry king of all werewolves and wolfkin. He is the most powerful werewolf ever to exist, capable of wiping out entire cities. He is Martin the werewolf killer's arch-nemesis and mortal enemy of the Sailor Slayers.
Balrog's goal is to enslave the human race and become the most powerful being that has ever lived by eating the Sailor Slayers and absorb their Sailor Crystals.

Balrog is a monstrous werewolf covered in black and grey fur. He is big enough to swallow children and the heads of humans whole. His eyes, unlike those of his kin, have no apparent pupils, they resemble blank yellow orbs.
In his Turbo form, Balrog has silver-grey fur which spikes up in some areas, similar to a super saiyan's hair. His eyes, now with yellow pupils, are red.

Description: If there's something that Balrog likes more than anything it is killing young couples and torturing his victims, both physically
and psychologically, and then mutilate them in very gruesome ways. He hates Martin, the first creature to ever hurt him. Balrog views all humans as nothing more than an inferior species that deserve to become livestock, at the same time, viewing other magical creatures as slaves, servants or scum. He views himself as a god amongst his species. He desires to eat the Sailor Slayers, and absorb their powers via their Sailor Crystals.

Backstory: Balrog went mad for power and began a bloody reign of terror by killing many of his old subjects and followers, and attacked many of the kingdoms under his protection. He gradually began to include humans in his murder sprees, scaring Transylvania's populace with sights of horribly mutilated soldiers, policemen and werewolf hunters who tried to kill the lycan king. One day, after hearing the legend of the Sailor Slayers, he set sail towards Mexico while his new minions waited in Transylvania.
Once in Mexico however, he came into conflict with Martin, a young man with superhuman abilities and a sword specially made to destroy werewolves . He succeeded in killing Balrog, something that many a werewolf hunter failed to do, or did he?? Time later, a thunderbolt struck Balrog's grave, bringing the werewolf king back to life to terrorize once again. Unfortunately, Balrog now has plans of revenge against Martin and the people he cares about, conquering Earth while subjecting the humans into a reign of terror.

Powers/Abilities:
Superhuman Strength, Speed, Durability, Stamina and Agility
Werewolf transformation and physiology (he can transform from human to beast and back at will)
Senses that surpass those of man and wolf, along with nightvision.
Regeneration
Becomes more powerful whenever he gets near-death injuries and whenever he dies.
Energy Manipulation
Control over hellfire (also grants him resistance towards fire)
Ability to control the minds of wolves and low-level werewolves.
Magic
Necromancy
Ability to steal the powers of Sailor Slayers and add it to his own by absorbing their Sailor Crystals via eating them.
Turbo Balrog transformation: Balrog posseses an even more powerful form he can transform into. During his turbo transformation, his power increases even more and can also charge up energy much faster than before, as well as gain more powerful attacks.