Einherjar

Stout bearded warriors with golden auras, the einherjar wear chain mail and carry two-handed battle axes and oaken shields— their badges and symbols are all different, and it is said no two braid their beards quite alike.
As the spirits of warriors chosen by the valkyries and brought to Valhalla to fight for the gods against the giants, the einherjar are great warriors who eat and drink their fill of boar and mead each night, then spend their days preparing for Ragnarok. Some of this is combat training, and other portions are raids against the Jotun giants and thursir giants, to try their strength. Regardless of how often they are slain, the einherjar reappear each morning in Odin’s hall, so they have no fear of death, and their courage shames others into greater bravery.
Defenders of the Mortal World. From time to time, the ravenfolk guide a troop of the einherjar against some of Loki’s minions or the servants of Boreas. These raids are often small battles, but the einherjar know they are only delaying the inevitable rise of the world serpent and its many evil spawn. This drives them to greater efforts against giants, demons, lindwurms, and other evil creatures, but the einherjar themselves are not exactly saintly. They drink, they carouse, they slap and tickle and brag and boast and fart with the loudest and most boastful of Asgardians. Unlike most extraplanar creatures, they are very human, if somewhat larger than life.
Fear Dragons. The einherjar have a notable soft spot for the ratatosk and the ravenfolk, but they are superstitiously fearful of dragons of all kinds. They sometimes hunt or ride or carouse with the fey lords and ladies.
Never Speak to the Living. In theory, the einherjar are forbidden from speaking with the living: they must pass their words through a valkyrie, a ratatosk, one of the ravenfolk, or other races allied with Asgard. In practice, this rule is often flouted, though if Loki’s servants notice it, they can dismiss any einherjar back to Valhalla for a day.