Monsterbrew

SRD

Swarm of Piranhas

medium beast, unaligned

AC 13

Initiative +3 (13)

HP 28 (8d8 + -8)

Speed 5 ft., Swim 40 ft.

ModSaveSTR 13+1+1DEX 16+3+3CON 9-1-1
ModSaveINT 1-5-5WIS 7-2-2CHA 2-4-4

Senses Darkvision 60 ft. Passive Perception 8

CR 1 (XP 200; PB +2)

Swarm. The swarm can occupy another creature's space and vice versa, and the swarm can move through any opening large enough for a Tiny piranha. The swarm can't regain Hit Points or gain Temporary Hit Points.

Water Breathing. The swarm can breathe only underwater.

Actions

Bites. Melee Attack Roll: +5 (with Advantage if the target doesn't have all its Hit Points), reach 5 ft. 8 (2d4 + 3) Piercing damage, or 5 (1d4 + 3) Piercing damage if the swarm is Bloodied.

Swarm of Piranhas is from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, used under the Creative Commons Attribution 4.0 International License. Full attribution is on the Licenses & Attribution page.