A creature you touch moves with stunning grace. For the duration, the creature can take the Dash or Disengage action as a bonus action on each of its turns. If the creature doesn’t use the bonus action granted by this spell during its turn, it becomes evasive until the start of its next turn. While evasive, if it is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw and only half damage if it fails.