Comet Piercer

You conjure a dagger of meteoric power, containing the might of gravity. Make a ranged spell attack roll against a target you can see in range. On a hit the target takes 1d4 piercing damage.

For every 20 feet the dagger travels, its damage die increases by one stage (20 ft increases to 1d6, 40 ft increases to 1d8, 60 ft increases to 1d10, 80 ft increases to 1d12), up to a maximum of a d12.

This spell’s damage increases by one die when you reach 5th level (2d4; 2d6; 2d8; 2d10; 2d12), 11th level (3d4; 3d6; 3d8; 3d10; 3d12), and 17th level (4d4; 4d6; 4d8; 4d10; 4d12).