WARNING! -Does contain spoilers!
Deleth took the dagger, and slid the warm blade across his hand. Holding out a fist above the heart, he squeezed the blood from his hand and it dropped onto the heart. Suddenly, the heart began to beat. A large yellow eye opened in the center of the heart. A nictitating membrane blinked across the eye, before it glared up at Deleth who stumbled backwards, startled by what he witnessed. The heart seemed to have come alive and had begun to take form into something else. Deleth gathered himself and began to chant, redirecting the point of the dagger towards his chest. The dagger struck, and struck hard as Deleth gasped and arched forward in agony.
"DARK ONE, GRANT ME YOUR POWER!"
Symbiotic tentacles sprouted from the heart and shot forth, attaching themselves to the hilt of the dagger, and began to climb upward like an octopus and into Deleth’s chest. His head rocked back and his eyes widened.
"I feel your power, surging within me!"
Deleth laughed wickedly before collapsing to the floor. He felt his body beginning to change. His white, silvery hair had darkend to that of ebony. Horns emerged from his head, and his fingernails blackened and grew pointed. His once Elysian-violet eyes now became red like crimson.
It was done. The soulless one rose.