How to Show Attack Descriptions in Steven Universe: Unleash the Light for Nintendo Switch?

I’ve been playing Steven Universe: Unleash the Light for Nintendo Switch, and am having an issue making the attack descriptions show up consistently when selecting attacks.

As a result, there I’m running into a number of costly options I fear to try in game, because I have no idea what they do until I spend the star points to do them.

Is there a button combination I’m missing?