small Beast
Armor Class 13
Hit Points 14
Speed swim +30, walk +30
Challenge 1/4
Saving Throws cha -3, con +0, dex +3, int -4, str -2, wis +0
Senses darkvision 60 ft.
Languages -
Accustomed to Filth. The rat has advantage on saves against contracting diseases.
Heightened Smell. The rat's Perception is 15 while perceiving by smell.
Pack Tactics. The rat has advantage on attack rolls against a creature if at least one of the rat's allies is within 5 feet of the creature and the ally isn't incapacitated.
Bite. _Melee Weapon Attack:_ +5 to hit, reach 5 ft., one target. _Hit:_ 5 (1d4+3) piercing damage. If the target is a creature, it must make a DC 13 CON save. On a failure, the target contracts the rat plague disease (see Diseased Rats sidebar) or is poisoned until the end of its next turn (the GM's choice).
Source: Black Flag SRD · OGL/Open