Yogg-Saron

Yogg-Saron is one of the Old Gods from World Of Warcraft and the second to be featured as a tangible antagonist in the form of a raid-boss (the first being C'thun) - like its predecessor Yogg-Saron is a Lovecraftian Horror of mind-shattering intent that thrives off madness and despair.

Adventurers who brave the horrors of the Old God's lair face a desperate struggle to not only stay alive but also stay sane as Yogg-Saron attempts to break their very minds with its horrific hallucinations and formidable powers.

Yogg-Saron is also heavily implied to be behind many of Northerend's supernatural horrors, the Old God's voice whispering to adventurers' after they set foot on Northerend soil and driving many people insane throughout the course of the storyarc.