Taliktan

 is a level 86, Raid-rank monster and the Genius of Summoning. It is the "final boss" of the Shibuya Raid during the events of volume 10, Homesteading the Noosphere.

Synopsis
Near the first Anniversary of the Catastrophe, he appeared in Shibuya and set up a a base of operations there, summoning large hordes of Moonlight Moths using the communications array of the abandoned NHK building and turning the entire city into a raid zone filled with high-leveled monsters.

The moths spread around all over Yamato and even beyond into the Chinese server, putting both Landers and Adventurers into a deep sleep from which they were unable to awaken due to a continuous MP drain. The Shibuya Raid Party was dispatched to defeat Tacritau and save the communications array, a venture that eventually succeeded despite initial difficulties.

Trivia

 * In the Nuctemeron, the book that the Genius' names and epithets are derived from, Taliktan is named Tacritau.
 * According to the book, Tacritau is the Genius of Goetic Magic, which is basically the summoning of demons and spirits.