Hells Lightning (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Duration:||Concentration, up to 1 minute|
Call forth the most powerful lightning from the deepest and darkest parts of Hell to destroy everything that stands in your way.
You fill a 30-foot radius, 100-foot tall cylinder with lightning, centered on a point in range. Each creature in the area must make a Dexterity saving throw, taking 5d12 lightning damage and 5d12 fire damage on a failed save and half as much on a successful one. The lightning ignites flammable objects in the area that aren’t being worn or carried.