User blog comment:DJay32/The Duel of Shaman Kullermes and Migrant O-Thorde/@comment-28939893-20161009025221

According to Viceking's Blaag, this was supposed to represent Rapture vs. Mephi. I've never read either, and never even heard of a Rapture/Mephi rivalry. Which person represents which series, and why? (I sound like a comprehension question.)