Wide Guard protects the user's team from all multi-target moves (such as Surf or Rock Slide), for the duration of the turn. It has priority +3 so will activate before most other moves.

The accuracy of Wide Guard does not decrease if used consecutively after itself or Quick Guard. However, it does decrease the accuracy of Protect, Detect, Endure, Spiky Shield, King's Shield and Baneful Bunker by 1⁄3 each time it or Quick Guard is used.

When a Pokémon is holding Rockium Z and uses its Z-Power, Wide Guard turns into Z-Wide Guard and raises Defense one stage, in addition to its usual effect as above.