Universe/Timeline:
Marvel Universe
Among the mutants, demons, and hybrids of Arakko and Amenth, none are more feared than the genomic mage called Tarn the Uncaring. His powers of genetic manipulation and fanatical devotion to the new and the profane lead him to experiment on others, changing their mutations and producing his Locus Vile, zealot devotees who praise him for the horrors inflicted upon them.
