Acid Flame

You throw a sphere of burning acid. Choose one to three creatures you can see within range. If you choose two, they must be within 10 feet of each other. If you choose three, they must be within 5 feet of each other. A target must succeed on a Dexterity saving throw or take 1d10 acid damage.

This spell’s damage increases by 1d10 when you reach 5th level (2d10), 10th level (3d10), 15th level (4d10), and 20th level (5d10).