The First Trumpet

A spectral creature appears and hovers for the duration in an unoccupied space of your choice that you can see within range. A horrific creature  appears within that space and is indistinct except for a large skeletal body (not necessarily Humanoid)

Any creature hostile to you that moves to a space within 15 feet of the creature for the first time on a turn must succeed on a Wisdom saving throw. The creature takes 20 Psychic damage on a failed save and gains the frightened condition, or half as much damage and no frightened condition on a successful one. The creature vanishes when it has dealt a total of 80 damage.