Arachne Mimic

Shapechanger. The mimic can use its action to polymorph into an object, object with spider like features, a spider or back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.

Adhesive (Object Form Only). The mimic adheres to anything that touches it. A Huge or smaller creature adhered to the mimic is also grappled by it (escape DC 15). Ability checks made to escape this grapple have disadvantage.

False Appearance (Object Form Only). While the mimic remains motionless, it is indistinguishable from an ordinary object.

Grappler. The mimic has advantage on attack rolls against any creature grappled by it.

Speak with Spiders. The spider can communicate simple concepts to other spiders and spider-like creatures.

Spider Climb. The spider can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Web Sense. While in contact with a web, the spider knows the exact location of any other creature in contact with the same web.

Web Walk. The spider ignores movement restrictions imposed by webbing.

Multiattack. The Arachne Mimic makes two bite attacks, then uses its Web if it can.

Pseudopod. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage. If the mimic is in object form, the target is subjected to its Adhesive trait.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage plus 4 (1d8) acid damage. the target must make a DC 14 Constitution saving throw, taking 9 (2d8) poison damage on a failed save, or half as much damage on a successful one. If the poison damage reduces the target to 0 Hit Points the target is stable but Poisoned for 1 hour, even after regaining  Hit Points.

Swarm: As a action the mimic may call forth a Swarm of Spiders or three other Arcahne Mimics to assist it. They will occupy any unoccupied spaces within 65 ft of the original Arachne Mimic. Can only do so once every three turns.

Friendly Foe: When the mimic's health is half or bellow, it may attempt to become apart of a enemies armor in an attempt to save its life. This is the same as surrender and will attempt to win over the stronger beings favor. This is a Dex Check throw to get onto the armor.