Swarm of Rats 2014
CR 1/4 beast
Medium beast, unaligned
STR9 (-1)
DEX11 (+0)
CON9 (-1)
INT2 (-4)
WIS10 (+0)
CHA3 (-4)
Keen Smell.
The swarm has advantage on Wisdom (Perception) checks that rely on smell.
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 rat. The swarm can't regain hit points or gain temporary hit points.
Actions
Bites.
Melee Weapon Attack: +2 to hit, reach 0 ft., one target 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.
Environments: Caves, Forest or Jungle, Ruins, Sewer, Swamp or Marsh, Urban
Other versions
Source: System Reference Document 5.1 (Wizards of the Coast) · License: Creative Commons Attribution 4.0 / OPEN GAME LICENSE Version 1.0a details