Skin Bat

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.