Another excellent piece i picked up from the same artist at Anime Revolution.

This one is of Korban when he first awakens his Immortal Trigger. The Spirit of his sword, Armageddon, quickly overpowers his mind and he adopts a thirst for bloodshed and chaos. His actions are completely against his will, but at the same time his speed and strength are increased tenfold and he gains wings for added flight and mobility. Also his guns, Phobos and Deimos are able to unholster themselves and act entirely of their own accord, as if controlled by an invisible force. (Much like Vergil's Spiral Swords). Over time he learns to suppress the spirit and can maintain conscious control of himself for about 10 minutes at best.