Channel Divinity: Devour The Enemy

The world eater calls upon his inner bloodlust and attempts to eat the enemies life force. When the world eater his a creature with a melee attack, the World Eater can use Channel Divinity to deal extra necrotic damage to the enemy and heal based on the amount. The damage equals to 5 + twice his or her level. The total damage to heal from is the total damage done by the attack + the extra necrotic damage.