The Fibrous Entanglers allow you to make a Grapple attack on an enemy within 10 feet forcing them to make a strength saving throw on a failed save they are grappled for 1d4 rounds and must use their action to make a strength save to try and break free they have disadvantage on the subsequent saves.  You can only grapple one enemy at a time, and each round they fail to break free they take 1d4 bludgeoning damage.

Your horror form gains a Firey attunement causing all unarmed melee attack and grapple damage to gain an extra 1d4 fire damage, at level 8 increase the fire damage to 2d6, and at level 15 increase the fire damage to 3d8.

With this addition to the horror form if you take damage from any magical source be it a magic weapon or a spell your body can channel the damage you took and reflect it back as a REACTION on the next enemy that would hit you with a melee attack. Your allies can use this to their advantage to give you a kind of REVENGE COUNTER so to speak, however if you are knocked out before you can release the built-up energy the energy you channeled is released and hits random targets with magic missiles that deal 1d4 lightning damage.

You can use a bonus action to empower yourself or 1 ally within 15 feet of you and in line of sight granting the target +1 to their attack rolls and +1 to the damage rolls for 1 minute.  If you target a humanoid ally with this ability, they are struck with a parasite that deals 1d4 necrotic damage and inflicts the lycanthrope sickness on them.  It can be healed but at great cost being 10% of their max health, if they choose not to have it healed, they can then gain the bonuses of either a Lycanthrope, Animagus, or if they so desire, they can take the path you followed and obey the will of Emrakul in becoming one of her drones.