Skin Bat

Small undead, neutral evil

Armor Class 13 (natural armor)
Hit Points 14 (4d6)
Speed 10 ft., fly 40 ft.

12 (+1) 16 (+3) 10 (+0) 2 (-4) 13 (+1) 6 (-2)

Skills Perception +3
Damage Immunities poison
Condition Immunities poisoned
Senses darkvision 60 ft., passive Perception 13
Challenge 1/2 (100 XP)

Special Traits

  • Summon Bat Swarm. The high-frequency cries of a skin bat attract nearby mundane bats. When a skin bat faces danger, 0-3 (1d4-1) swarms of bats arrive within 1d6 rounds. These swarms are not under the skin bat’s command, but they tend to reflexively attack whatever the skin bat is fighting.


  • Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) piercing damage and the target must make a successful DC 10 Constitution saving throw or be paralyzed for 1d4 rounds. In addition, the skin bat attaches itself to the target. The skin bat can’t bite a different creature while it’s attached, and its bite attack automatically hits a creature the skin bat is attached to. Removing a skin bat requires a successful DC 11 Strength check and inflicts 5 (1d4 + 3) slashing damage to the creature the bat is being removed from. A successful save renders the target immune to skin bat poison for 24 hours.


Skin bats are undead creatures created from skin flayed from the victims of sacrificial rites. They are given a measure of unlife by a vile ritual involving immersion in Abyssal flesh vats and invocations to the Demon Lord of Bats and Fire and similar demon lords. They feed on the skin of living beings to replenish their own constantly rotting skin. Their acidic saliva acts as a paralytic poison and leaves ugly scars on those who survive an attack.

The typical skin bat has an 8-foot wingspan. The color of their skin matches that of their prey, so a skin bat’s coloration can change over time. A skin bat weighs about 15 lb.


Cliff and Dungeon Dwellers. Skin bats prey on the unwary but do not develop sinister plots of their own. Their flocks can be encountered in isolated areas accessible only by flight or by climbing treacherous cliffs. Skin bats can exist in any climate. In cool climes, they feed only infrequently, because the cold preserves their forms and reduces the need to replenish decaying flesh. This also explains why they are attracted to the dark depths of ageless dungeons. In wet, tropical climes where their skin decomposes rapidly, skin bats are voracious feeders by necessity.

Accidental Treasures. Skin bats have no use for magic items or wealth, but occasionally a ring or necklace from a past victim gets embedded in their fleshy folds, where it becomes an unintended trophy.

Section 15: Copyright Notice

Tome of Beasts. Copyright 2016, Open Design; Authors Chris Harris, Dan Dillon, Rodrigo Garcia Carmona, and Wolfgang Baur.