ClockWomper the Awakened.(Bio-Mechanical Clockwork Tree)

False Appearance. While Wompy remains motionless, it is indistinguishable from a normal tree. It was already Bio-Mechanical Clockwork, and that is normal in it's plane of existence, so it doesn't stand out.

Spread throughout the Sprawl: Wompy's Bio-Metallic roots are so long and wound so extensively through the Aeolic Sprawl, that it is unable to move. There are points throughout the sprawl where it's roots are exposed though, and it can move them to assist its friends. 

Immutable Form, and teleportation immunity. Cannot be transmogrified, teleported or moved in anyway without it's consent.

Immune to all status conditions except being set on fire. 

Vulnerable to Fire but resistant to everything else. 

Triple Attack: Wompy attacks twice with Branch Slams, and once with its trunk slam. 

Bio-Metallic Branch Slam. Melee Weapon Attack: +15 to hit, reach 10 ft., one target. Hit:  (6d6 + 10) bludgeoning damage.

Bio-Metallic Trunk Smash. Melee Weapon Attack: +10 to hit, reach 20 ft., one target, but those within 15 ft of target make dex save or take half damage. No damge on save. Hit: 14 (12d12 + 12) bludgeoning damage. 

Shake and Control Leaves: As a bonus action, Wompy can shake some of it's leaves free and control how they fall to obscure anyone standing underneath it. They can see out fine, but anyone attempting to attack a target from outside the leaves attacks at disadvantage due to the way the leaves obscure anyone inside it. 

Protect Ally with Branches: Wompy can use its reaction to absorb an attack directed at an ally that is within 20 ft of the trunk once per turn.

Root Assist: Wompy's Bio-Metallic roots are so long and wound so extensively through the Aeolic Sprawl, that it is unable to move. There are points throughout the sprawl where it's roots are exposed though, and it can move them to assist its friends. If someone is close enough to a root and Wompy is willing to assist, then it can use that Root to perform the Branch Slam, or Protect Ally With Branches action once per round to anyone within 10 ft of the root. 

Call on Birds: Once per turn Wompy can call on a flock of birds to attack anyone it can see. The birds do not fly around in a pack, so cannot be targeted as such and all swarm together on the command of Wompy Pecking anyone Wompy chooses in a 20 ft radius for (6d6+6) Piercing damage, unless they make a DC 15 DEX save. Half damage on successful save.