Baldur is the Norse God of light, joy, purity, and summer sun. He is the son of Odin and Frigg. Baldur is so constantly happy and joyful that he does not wear full outfits. With his outfit however Baldur's armor has an under glow of light emanating from him. Baldur is said to be invulnerable and not able to die. This is because his mother Frigg went to all of the realms and asked everything from the water, to iron, to the animals that they would not be able to hurt him. All things agreed even the devious snakes. The only thing that Baldur is vulnerable is a mistletoe bush that Loki will eventually use to kill him.