The Bonewalker (スケルトン Sukeruton, lit. Skeleton in the Japanese versions) is an enemy-only Monster class that debuts in Fire Emblem Gaiden. As their name suggests, Bonewalkers are literally walking skeletons, wielding Swords, Lances and Bows as their weapons of choice. Bonewalkers are designed with a few ripped and tattered pieces of cloth draped over their skeletal bodies, most likely relics from their time as members of the living realm.
In The Sacred Stones, Bonewalkers are among the most common and lowly classes of monsters. They appear in the first chapter that include monsters at a relatively low level. As their in-game description indicates, Bonewalkers can be found carrying a variety of weapons that include Swords, Lances and Bows. They also commonly carry rare weapons that are dropped upon their defeat; the Runesword, Lancereaver, Killing Edge, Spear and Axereaver are amongst the weapons that can be looted from them.
Bonewalkers are notably weak in all statistical departments. Like many other monster classes, they make up for their fundamental weaknesses by coming in much larger numbers than most enemies. They often have very low Hit Rates, a fact that limits the amount of damage that they can inflict. They also have very low strength, further reducing their combat effectiveness due to them inflicting little to no damage at all. Despite these weaknesses in fundamental areas, Bonewalkers have rather high Avoid, which allows them to evade attacks with relative ease as compared to other monster classes.
In the class roll for The Sacred Stones, only Swords and Lances are listed as weapons armed by Bonewalkers, even though they are also known to be able to carry Bows.
Bonewalkers, along with Wights, are the only class to have separate weapon ranks.
Bonewalkers are very likely the reanimated skeletal corpses of combatants who were felled in battle. Depending on the weapons that they wield, they can be assumed to have been unmounted Cavaliers (Melee) and Archers (Bow) prior to their deaths.