Call Inferno

Pillars of flame sprout from the ground in areas of the user's choice. Two cylinders of fire, 5 feet wide and 10 feet tall, appear within areas in range. Each creature within those areas must make a Dexterity save, taking 2d10 fire damage, or half on a failed save. On every turn until the spell ends, you can use your action to create the pillars of flame once again..

At Higher Levels. When you cast this spell using a spell slot of 4th or higher level, you can create one additional pillar for each slot level above 3rd.