Bramblebane

You instill upon a creature within range a sudden bounty of speed, leaving them unaware of its cursed cost. The target’s walking speed is increased by 15 feet for the duration.

Unbeknownst to the creature, the first time it uses any of this additional movement, it is forced to use the entire 15 feet and takes 1d6 piercing damage for every 5 feet it moves. The spell then ends, and the creature can no longer be fooled by the nature of the spell.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the additional movement is increased by 5 feet for each level above 1st