Darkheart is a mysterious Sword (deity) with a lilypad-shaped black hat with a lime green cloth sewn on underneath. Darkheart has two horns on one side of his head. His face always has a grin and a shadow cast over it. Darkheart is more than willing to take huge risks with zero hesitation. Darkheart can also modify the bodies of those he does deals with, modifying them physically and mentally. Darkheart refers to himself as "we" and not "I". Darkheart is close friends with Venomshank.