God of:Desire in all forms.

Chaos space Marines legion:The Emporor's Children

Gains power and souls from:Hedonism and self indulgence.His birth was concieved in the Eldars centuries of it.His birth was like a gigantic bang.In all major centers of the eldar race there were rips in the fabric of space and in the largest portion of eldar the eye of terror was created.A huge rip between the two universes,the material one and the warp.In the warp physical rules do not exist,there are worlds of eternal darkness and worlds where building stretch thousands of miles up.

Unliked chaos Gods:Khorne;Slaanesh sees him as crude and unsophistticated,but the nature of slaanesh' power is that it will expend itself long before Khorne has finished sating his bloodlust.

Other:His birth began the downfall of the Eldar race,ended the centuries long warpstorm that had isolated Earth and heralded the age of the Imperium.He also allowed the Horus Herasy to take place centuries later.