Demiurge's pair of eyes lack eyeballs, in fact, shining jewels with numerous small cuts take the place of his eyeballs. This allows him to see in all manners of conditions including fog and darkness. He can also see body heat through thin walls.

A spell that shoots out a very small flame that will then latch onto a target and become a raging inferno that burns anything to ashes with black flames and takes 1d12+3 dmg unless the enemy makes a CON save of a 15 taking half as much dmg if they do save. INT is your casting attriubute for this spell. 

You are a master tactician and gain a +2 INT and +2 WIS

You may make 2 actions to take on an aspect of the devil, you can only take one aspect at a time out of the options.
Deadly Claws- Attack 4 times per attack
ArchDemons Wrist- enemy must make a CON save of 15 or be knocked away
Tentacle Wing- shoot 5 times per attack. Gain flight
Fire Mantle- +2 AC. Enemy's must make a CON save of 15 or take 2d6 fire damage each time they attack you in melee