Clockwork Caretaker

Electricity Absorption. Whenever the golem is subjected to electricity damage, it takes no damage and instead regains a number of hit points equal to the electricity damage dealt.

Nonslip. The golem has advantage on saving throws that would force it to move or knock it prone.

Magic Weapons. The golem's attacks are magical.

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

Oil Spray. Slick oil covers the ground in a 30-foot cone and turns it into difficult terrain until cleared. When the oil appears, each creature standing in its area must succeed on a DC 13 Dexterity saving throw or fall prone. A creature that enters the area or ends its turn there must also succeed on a Dexterity saving throw or fall prone. 

Adhesive Spray. Sticky gunk covers the ground in a 30-foot cone and turns it into difficult terrain. When the gunk appears, each creature standing in its area must succeed on a DC 13 Dexterity saving throw or be restrained.

Pressure Wash. High pressure water blasts in a 30-foot line, dousing any flames in its path. A creature in the path must make a DC13 Dexterity saving throw or take 2d6 bludgeoning damage and be pushed 10 feet away on a failure, or suffer half damage on a success.

Ignite Spray. Clockwork Caretaker may use its reaction to ignite any spray produced by Clockwork Caretaker. When the spay is ignited, each creature standing in its area must succeed on a DC 15 Dexterity saving throw or take 4d6 fire damage on a failure, or suffer half damage on a success.