Anau's Magic Sling

You enchant a sling improving the range to 60 feet and adding you spellcasting modifier on every hit roll.

On a hit the creature must make a strength saving throw of 10 + your spellcasting modifier, if the creature fails the save they are knocked prone and take 1d6 extra force damage.

This spell ends after 5 rounds of combat.

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