Tongue of Acamar

You conjure a grotesque manifestation of Acamar's insatiable hunger in an unoccupied space you can see within range. A colossal, blackened tongue emerges from a vertical tear in reality, its surface covered in countless whispering mouths and pale, starless eyes.

The Tongue occupies a 10-foot-by-10-foot space, has a reach of 15 feet, and is considered a Large magical object with an AC of 16 and hit points equal to 10 times the spell's level. It is immune to psychic and poison damage. If reduced to 0 hit points, the manifestation disappears. When the Tongue first appears, each creature of your choice within 15 feet of it must succeed on a Wisdom saving throw or become Frightened (Starless) for the duration. A creature can repeat the saving throw at the end of each of its turns, ending the effect on a success. 

When you cast this spell, and as a bonus action on subsequent turns, you can command the Tongue to move up to 30 feet along the ground or through the air and target one creature within 5 feet of it that is Frightened (Starless). The creature must succeed on a Strength saving throw or become grappled by the Tongue (Action Strength check, escape DC equal to your spell save DC). While grappled, the creature is restrained and takes 2d8 necrotic damage at the start of each of its turns. The Tongue can grapple only one creature at a time, and the grapple ends if the manifestation disappears. A creature that drops to 0 hit points while grappled is banished for the duration of the spell. The Tongue cannot be more than 90 feet away from you, if you start your turn with it beyond this distance the spell ends.

Frightened (Starless). Creatures frightened by the Tongue suffer one of three manifestations of cosmic terror, determined by the amount by which they failed their saving throw:

• Whispering Dread (Failure by 1–4): The creature is frightened of the Tongue and cannot willingly move closer to it. Whenever the creature misses an attack roll, it takes 1d6 psychic damage.
• Starless Panic (Failure by 5–9): The creature suffers a creeping dread in the back of their mind, as a result it has its speed halved. Additionally, it cannot take reactions while it can see the Tongue.
• Devouring Terror (Failure by 10 or more): The creature panics and must use its movement on each of its turns to move as far away from the Tongue as possible by the safest available route. It cannot willingly approach the Tongue or take bonus actions while frightened in this manner.

These effects replace the normal frightened condition's disadvantage on attack rolls and ability checks, but otherwise count as being frightened.

At Higher Levels: When you cast this spell using a spell slot of 7th level or higher, the Tongue's hit points increase by 10 and its armor class increases by 1 for every level above 6th.