Bajah Blast

With a flick of the wrist, a small, concentrated beam of wild, crackling bubblegum-pink light is quickly fired towards any one creature or object you can currently see. Make a ranged spell attack against the target. On a hit, the target takes 1d8 force damage. It can be aimed at an object a creature is carrying and/or holding to knock it away from their hands or damage it. If aimed at a creature's eyes, you must roll an additional ranged spell attack, on a hit, the target is blinded and cannot see for 1 turn.

However, a special characteristic from the Bajah Blast allows it to be something even greater in rare circumstances. The player may roll an additional 1d100 die every time the cantrip is used to attack a creature, if it lands on 100 (Or a close enough(or far enough) number if the DM allows it), the Bajah Blast goes wild and discharges a gigantic beam of pure energy that destroys everything in it's path, it stretches as far as the eye can see. The creature must make a DC21 dexterity saving throw to avoid it. On a hit, everything in its path takes 1d69420 force damage and is obliterated.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d6).