Emerald Beacon

This spell creates a pillar of emerald green light centered on the caster. The pillar has a radius of 10 feet, and stretches upwards for up to 300 feet. Every creature within the pillar must make a Constitution saving throw. On a failed save, a creature takes Force damage equal to 27 (6d10) plus half of the caster’s spell attack bonus, or half that on a successful saving throw. Anything above the caster is damaged, as well.