Boooket

Immutable Form. The boooket is immune to any spell or effect that would alter its form.

Magic Resistance. The boooket has advantage on saving throws against spells and other magical effects.

Magic Weapons. The boooket's weapon attacks are magical.

Change Movement Style. Can use a bonus action to extend or retract its three, stubby legs. When its legs are extended, it can slowly hobble along. When its legs are retracted, it can move more quickly by spinning on its base. 

Climbing Style. Climbing is achieved by spinning its handle 360 degrees and using it like a pole fault.

Wandering Eyes. The Boooket's eyes can move around anywhere on the exerior surface it its body.

False Appearance. When the boooket remains motionless and with its eyes closed, it is indistinguishable from a regular bucket full of supplies.

Regenerating Supplies. Whenever some of its supplies are lost or broken, new ones magically appear in the boooket.

Multi-attack. The boooket makes either makes 3 Broom-Mop Staff attacks -OR- 3 Nail Attacks. One of these attacks can be replaced with a Hammer attack.

Broom-Mop Staff. Melee Weapon Attack: +7 to hit, reach 5 ft., 1 target. Hit: 1d6 + 4 bludgeoning damage.

Hammer. A hammer magically levitates out of the boooket and launches itself like a boomerang in a 25 ft. straight line. Any creature within the hammer's path must make 2 DC 16 DEX saving throws, taking 1d4 +4 bludgeoning damage for each failed save.  

Nail. (Ranged Weapon Attack) +7 to hit, range 20/60 ft., 1 target, 1d4 +4 piercing damage.

Spread Nails. As an action, you can spread nails to cover a square area that is 5 feet on a side. Any creature that enters the area must succeed on a DC 15 Dexterity saving throw or stop moving this turn and take 1 piercing damage. Taking this damage reduces the creature's walking speed by 10 feet until the creature regains at least 1 hit point. A creature moving through the area at half speed doesn't need to make the save.

BONUS ACTION

The mop end of the boooket's Broom-Mop Staff magically becomes wet. 1/2 of the Broom-Mop Staff attacks it makes this turn (rounded up), inflict an extra 1d6 cold damage to fire elementals and similar creatures.

Sponge Defense. If the boooket is hit by an attack that inflicts fire damage, its sponge instantly becomes wet and reduces the damage taken by 1d6 + 2.