Arcane Blast

A canon ball of unseen energy streaks toward a creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 +your spellcasting ability modifier. The target must succeed on a dexterity saving throw or be knocked back 15ft and prone.

 This spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).