Shade Rat (5e Creature)
From D&D Wiki
Medium beast, unaligned
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) piercing damage.
Among the largest of rodents, shade rats—so named for their incredibly dark fur—are as big as large dogs, and have a powerful bite. Commonly found in sewers, caves, and goblin lairs, shade rats are lazy and send their young to gather food (use the giant rat statistics to represent the young), which they devour, leaving behind only scraps. Young shade rats often hide food from their elders in small spaces the adults are too large or too lazy to try and squeeze through, and thriving shade rat dens are invariably rife with hidey-holes full of food.
Variant: Diseased Shade Rats
Some shade rats carry vile diseases that they spread with their bites. A diseased shade rat has a challenge rating of 1/2 (100 XP) and the following action instead of its normal bite attack.