Planar Bestiary
In a heavenly Outer Plane known as Ysgard, slain warriors strive against each other forever. If they are killed on the field of battle, new existence is breathed into them when the sun next rises. Some of these spirits have gone through this cycle so many times that their features, gender, and individuality have eroded away over the millennia, leaving only the pure essence of fighting behind.
Various magical items can summon berserker spirits, compelling them to fight. Rarely, for reasons the gods have not deigned to reveal, a much more powerful eilfgar appears instead. The eilfgar fights as the berserkers would have; however, after about an hour (or if they're killed and reform a day later), the summoned eilfgar takes their leave to seek their purpose in the larger multiverse.
If an eilfgar makes their way out of Ysgard purposefully or by accident, they regain a single memory of an unfinished task, failed quest, abandoned duty, undelivered message, or other unresolved matter from their earlier life. Even if years, decades, or centuries have gone by since, an eilfgar will try to resolve that tension by seeking those who they failed in some way.
Because of time's cruel passage, most eilfgar are frustrated in their attempt to resolve an ancient, unfinished task, and become morose wanderers.
Berserker: level 2; two attacks as level 4 each inflict a moderate wound (4 points)
Motive: Defeat evil, complete an unfinished task
Environment: Anywhere in the multiverse, alone or with converts to the cause
Health: 30
Damage Inflicted: Moderate wound (6 points)
Armor: 2
Movement: Short
Modifications: Perception as level 7
Combat: The eilfgar attacks twice each round with their swords.
About once every minute, the eilfgar blows on a great horn, producing a blaze of radiant energy affecting up to six creatures within short range, inflicting a moderate wound (6 points) on a failed Speed defense task, or 2 points even if successful.
Once per day, as the radiance of the "horn" attack fades, motes linger, forming into ten berserkers from the plane of Ysgard. They return to Ysgard after 12 hours or when they reach 0 health.
Interaction: Even if their unresolved tasks are never completed, eilfgar are still the spirits of slain heroes, and most cannot stand to see evil perpetrated in their presence. They summon their weapons of ancient days, wind spells of power around them, and deal with those whose deeds stain the earth.
Often, other beings who have complicated motives or who operate in a grey area look evil to an eilfgar.
Use: Explorers accidentally summon an eilfgar, which serves them for one hour, then asks that they in turn help the creature achieve some long-unfinished goal to push evil back.
Loot: An eilfgar's swords normally vanish when dropped, but occasionally one remains. The sword is a heavy weapon artifact that magically eases attacks made with it (level 6; depletion: —). Likewise, an eilfgar's horn normally fades when the eilfgar perishes, but every so often one remains. The horn is an artifact that produces 10 berserkers that serve the horn blower for one minute, then fade (level 6; depletion: 1 in 1d6).
GM Intrusion: The eilfgar blows on their great horn, producing a blaze of radiant energy that restores all their lost health.