Monster Manual
Skeleton CR: 1/4
Medium undead, lawful evil
Armor Class: 13 (armor scraps)
Hit Points: 13 (2d8 + 4) 2d8+4
Speed:
30 ft
Damage Vulnerabilities: bludgeoning
Damage Immunities: poison
Condition Immunities: exhaustion, poisoned
Senses: darkvision 60 ft., passive Perception 9
Languages: understands all languages it spoke in life but can't speak
Challenge Rating: 1/4
Shortsword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) 1d6+2 piercing damage.
Shortbow. Ranged Weapon Attack: +4 to hit, range 80/320 ft., one target. Hit: 5 (1d6 + 2) 1d6+2 piercing damage.
Skeletons arise when animated by dark magic. They heed the summons of spellcasters who call them from their stony tombs and ancient battlefields, or rise of their own accord in places saturated with death and loss, awakened by stirrings of necromantic energy or the presence of corrupting evil.