Brimstone Laser

Using this spell will cause you to begin charging a powerful attack for the rest of the round. While doing so, you are counted as Restrained. Being knocked prone, forcefully moved more than 5 ft, or being otherwise physically disrupted will cancel the spell altogether. Creatures lacking mouths cannot cast this spell.

On the round following the one you began charging, you can use an action to unleash a large and powerful beam of red energy from your mouth, otherwise the spell will fail. The beam is 10 feet high and 10 feet wide, and goes through all obstacles in it's way without damaging them in the process.

A creature hit by the beam takes 7d10 necrotic damage on a failed CON save, or half as much if succeeded.

This spell is only attainable through the magic item Brimstone Band of Bloodletting.