Darkvision. You can see in dim light within 60 feet of you as if it were bright light , and in darkness as if it were dim light . You can't discern color in darkness , only shades of gray.

Furball. You can use your bonus action to roll your body into a ball. While rolling, you can't take any actions, but your speed doubles and you can move through the space of medium and smaller creatures without treating them as difficult terrain. When you move through a creature's space, the creature must make a Dexterity saving throw with a DC of 8 + your proficiency bonus + your Strength modifier or take 2d4 + your Strength modifier bludgeoning damage and be knocked prone.

Keen Nose, Little Eyes. You have advantage on Perception checks that rely on smell, but disadvantage on Perception checks that rely on sight.

Bite. You can use your little hamster jaws to bite as a melee weapon attack you are proficient with which deals 1d4 + Strength modifier piercing damage.

Hamsters Ruling. As an action, once per day, you can call upon an army of hamsters. This army will stay around for 1 hour and will follow your commands. Use the Swarm of Rats in the Monster Manual for reference. This swarm doubles in size at levels 5, 10, 15, and 20, and is able to be controlled by one more hour each time the swarm grows.