Sleipnir

Slepnir was a Norse god and the son of Loki.

Personality
Slepnir's personality matched his young appearance. He possessed little respect for his brother Fenrir and cracked an inappropriate joke about his death. He was also a coward, fleeing after Narfi's death and pleading for his life when faced with Gabriel about to kill him.

Powers and Abilities
Slepnir appeared to be a god with rather weak abilities.
 * Immortality - Slepnir was thousands of years old and would never age or die unless killed.
 * Invulnerability - As a god, Slepnir was invulnerable to most forms of harm.

Weaknesses

 * Archangels - At full power, Gabriel could easily kill Slepnir.
 * Silver - Being shot in the right shoulder with a silver bullet by Sam Winchester sent Slepnir to the ground in great pain and effectively defeated him.
 * One of Gabriel's swords - Stabbing the sword specifically created for Slepnir through his heart was able to kill Slepnir.

Appearances

 * Season 13
 * Unfinished Business