Chai Golem (tiny spider)

Immutable Form. The golem is immune to spells or effects that would alter its form.

Magic Resistance. the golem has advantage on saving throws against magic and magical effects.

Magic Weapons. the golem's attacks are magical.

Organic Magic Immunity. the golem is immune to the effects and damage normally imposed by plant based spells such as entanglement, grasping vines, or hail of thorns.

Pack Tactics. The creature has advantage on attack rolls against another creature if at least one of the attacking creature's allies is within 5 feet of the target creature and the ally isn't incapacitated.

lighting moss. glowing moss grows from the golem.

Spider Climb. The spider can climb difficult surfaces, including along ceilings, with  out needing to make an ability check.

Multiattack. the golem makes two attacks

Slam. Melee Weapon Attack: +2 to hit, reach 5ft., one creature. hit: 6 (2d4 +2) Bludgeoning damage.

Tiny Dancing Lights. Casting Time 1 Action, Range/Area 30 ft., Duration 1 minute, Components V, S, 

You create up to three torch-sized lights within range, making them appear as torches, lanterns, or glowing orbs that hover in the air for the duration. each light sheds dim light in a 10-foot radius.

As a bonus action on your turn, you can move the lights up to 20 feet to a new spot within range. A light must be within 10 feet of another light created by this spell, and a light winks out if it exceeds the spell's range.

Grasping vine. a vine sprouts from the golem's body alowing it to graple a single target within 15 ft that the golem can see. the target must succeed on a DC 12 dexterity saving throw or be grappled. if the target is larger then the golem is pulled towards the target.