Toado Swarm (5e Creature)
From D&D Wiki
Large swarm of Tiny monstrosities, unaligned
Damage Resistances acid, bludgeoning, piercing, slashing
Amphibious. The toado swarm can breathe air and water.
Iron Stomach. The toado swarm is immune to ingested poisons.
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 monstrosity. The swarm can't regain hit points or gain temporary hit points.
Bites. Melee Weapon Attack: +4 to hit, reach 0 ft., one creature in the swarm's space. Hit: 7 (2d6) piercing damage, or 3 (1d6) piercing damage if the swarm has half of its hit points or fewer.
See Toado (5e Creature).
Shortly after a deku toad births a pile of toado eggs, the newly born toadoes are capable of acting with a hive mind, and usually act as a swarm as represented by these statistics.