# [Swarm of Piranhas](Rules\Source\bestiary\beast/swarm-of-piranhas-xmm.md) *Source: Monster Manual (2024) p. 370. Available in the <span title='Systems Reference Document (5.2)'>SRD</span> and the Free Rules (2024)* ## Animals Use these stat blocks to represent the creatures they're named for or other similar creatures. For example, the [Panther](/Rules/Source/bestiary/beast/panther-xmm.md) stat block can also represent a mountain lion, while the [Giant Goat](/Rules/Source/bestiary/beast/giant-goat-xmm.md) stat block might represent a buffalo. Any of these stat blocks might also serve as fantastical animals with distinctive names and cosmetic details unique to your D&D adventures. ```statblock "name": "Swarm of Piranhas (XMM)" "size": "Medium" "type": "beast" "alignment": "Unaligned" "ac": !!int "13" "hp": !!int "28" "hit_dice": "8d8 - 8" "modifier": !!int "3" "stats": - !!int "13" - !!int "16" - !!int "9" - !!int "1" - !!int "7" - !!int "2" "speed": "5 ft., swim 40 ft." "damage_resistances": "bludgeoning, piercing, slashing" "condition_immunities": "[charmed](/Rules/Source/conditions.md#Charmed), [frightened](/Rules/Source/conditions.md#Frightened),\ \ [grappled](/Rules/Source/conditions.md#Grappled), [paralyzed](/Rules/Source/conditions.md#Paralyzed),\ \ [petrified](/Rules/Source/conditions.md#Petrified), [prone](/Rules/Source/conditions.md#Prone),\ \ [restrained](/Rules/Source/conditions.md#Restrained), [stunned](/Rules/Source/conditions.md#Stunned)" "senses": "[Darkvision](/Rules/Source/senses.md#Darkvision) 60 ft., passive Perception\ \ 8" "languages": "" "cr": "1" "traits": - "desc": "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](/Rules/Source/variant-rules/hit-points-xphb.md)\ \ or gain [Temporary Hit Points](/Rules/Source/variant-rules/temporary-hit-points-xphb.md)." "name": "Swarm" - "desc": "The swarm can breathe only underwater." "name": "Water Breathing" "actions": - "desc": "*Melee Attack Roll:* +5 (with [Advantage](/Rules/Source/variant-rules/advantage-xphb.md)\ \ if the target doesn't have all its [Hit Points](/Rules/Source/variant-rules/hit-points-xphb.md)),\ \ reach 5 ft. *Hit:* 8 (2d4 + 3) Piercing damage, or 5 (1d4 + 3) Piercing damage\ \ if the swarm is [Bloodied](/Rules/Source/conditions.md#Bloodied)." "name": "Bites" "source": - "XMM" "image": "/Rules/Source/bestiary/beast/token/swarm-of-piranhas-xmm.webp" ``` ^statblock ## Environment underwater