Guthash, goblin for The Bloated One is a monstrously swollen female Giant Rat. All the rats of the Sunless Citadel descend from her.
Keen Smell. The rat has advantage on Wisdom (Perception) checks that rely on smell.
Pack Tactics. The rat has advantage on an attack roll 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: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) piercing damage. If the target is a creature, it must succeed on a DC 10 Constitution saving throw or contract a disease. Until the disease is cured, the target can’t regain hit points except by magical means, and the target’s hit point maximum decreases by 3 (1d6) every 24 hours. If the target’s hit point maximum drops to 0 as a result of this disease, the target dies.
Giant rats were much larger than the common rat, most growing to the size of a large dog. They were covered in coarse fur that was brown-black in color.
Giant rats were common found in subterranean areas such as crypts, dungeons and sewers. They were also found in great numbers within graveyards, where they dug a network of tunnel to gain access to the corpses found within.
Keen Smell: The rat has advantage on Wisdom (Perception) checks that rely on smell.
Pack Tactics: The rat has advantage on an attack roll against a creature if at least one of the rat's allies is within 5 ft. of the creature and the ally isn't incapacitated.
Bite: Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) piercing damage.