Cegorach the Baphet

Cegorach is the Aeldari god of deception, stealth, creativity, art and trickery. It was he who tricked the Outsider into eating other C'tan according to Aeldari legend during the War in Heaven between the Old Ones and the Necrontyr millions of Terran years ago.

Those Aeldari who follow him, known as the Harlequins, are protected from Slaanesh's eternal thirst for Aeldari souls in a different way from their craftworld brethren. While Craftworld Aeldari or Asuryani wear Spirit Stones which absorb their souls when they die to prevent them from being devoured by Slaanesh once they enter the Warp, the Aeldari Harlequins are directly protected by their faith in their god's power, becoming one with his own Warp emanation upon their death.

The only exception to this are the Harlequin Solitaires whose souls must be won from Slaanesh after their deaths by the Laughing God.

The Laughing God should not be confused with the C'tan called the Deceiver. There are a pair of stories in Aeldari mythology about the Laughing God and the Deceiver which sometimes cause this confusion. In one, the Laughing God tricks the Outsider into eating many other C'tan, driving him insane.