Distracting Tail

You create a magical display of playful canine energy that draws a creature's attention.

Choose one creature that can see you within range. The target must make a Wisdom saving throw.

On a failed save, for the duration: The creature has disadvantage on opportunity attacks.
The creature has disadvantage on Wisdom (Perception) checks.
The first attack roll made against the creature on each turn has advantage.

The creature can repeat the saving throw at the end of each of its turns, ending the spell on a success.