Vithirus

The First Wither, made to be a fighting machine and only bearing one head. Although he was an incredible fighter, people saw him as a threat and banished him to the nether. Being sentient, he took this to heart, plotting his vengeance. He brought life to the wither skeletons, knocking the blaze king off his pedestal, and using his rods to form the crown he wears. After many years, he sought to expand and finally advance to the Overworld, but was brought about surprised when he found out an entire fortress was wiped out by a sole soldier. Couldn't be human... couldn't be blaze... couldn't be pigman... couldn't be ghast... so he stumbled upon the fallen Kieri. "Are you... human?" He says as he helped the crimson skinned warrior to his feet. "Not anymore." Vithirus grinned to look into the eyes of the demon. "Then what do you want?" "Revenge."