Corvids catastrophic call

You conjure the spectral immaterial image of a head resembling a raven, crow or kenku head, made up of necrotic energy, at a point within range.

From that point the head sends out a call of necrotic energy in a 30 feet cone in a direction of your choice.

While this spell needs verbal components to cast, those verbal components are transformed into the call from the specral head and can only be heard from the point it was conjured from.

Creatures in this cone take necrotic damage without having rolled an attack roll against them or them doing a saving throw, though they are immune to this damage if they cannot hear the call in its area.

This necrotic damage is equal to 3d6 + 1d6 times the number of creatures hit within this spell, up to a maximum total, of 16d6 necrotic damage die rolled.

Creatures hit by this spell also suffer the deafened condition, if any number of creatures hit by this spell drop to 0 hitpoints, for a number of turns equal to the number of creatures that dropped to 0 hitpoints.

At Higher Levels: When you cast this spell using a spell slot of 6th level or higher, the length of the cone increases by 15 feet for each slot level above 5th and the total number of 1d6 die, that can be rolled, increases by 1 for each slot level above 5th. For dramatic effect, you may also increase the size of the spectral head, upon upcasting.