Einheriar

Strictly speaking, the term einheriar ("faithful") applies to the dead of Asgard, the first layer of Ysgard. Over time, however, the term has come to refer to any humanoid spirits employed by the powers of the Upper Planes as servants, warriors, patrols, or guards.

Einheriar appear as wispy, humanoid warriors with equally wispy armor and weapons. Each individual resembles the being he was in life; the majority of einheriar were human before death. In groups, einheriar march in military formation.

Note: Einheriar originally appeared in this form in the Planescape Monstrous Compendium for the AD&D game from TSR. Its use here is for the purposes of providing context for the campaign only.