Small Beast
Armor Class 12
Hit Points 7 (2d6)
Speed walk +30
Challenge 1/8
Senses darkvision 60 ft., passive Perception 10
Keen Smell. The rat has advantage on Perception checks that rely on smell.
Pack Tactics. The giant rat has advantage on attack rolls against a creature if at least one of the rats allies is within 5 feet of the creature and not incapacitated.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4+2) piercing damage.
Source: Level Up Advanced 5e Monstrous Menagerie · OGL/Open