What is a good LC moveset for Munna?

Question

If you have a good competitive moveset for Munna, post an answer below and upvote the best ones.

Be sure to include full set details in your post, e.g. items, abilities, natures and EVs. Some detail, including the intended game mode for your set, is also appreciated. Access the full list of guidelines here.

Munna Pokédex and learnset for reference.

Answer 1

Munna (M) @ Eviolite
Trait: Synchronize
EVs: 68 HP / 240 Def / 160 SDef / 8 Spd
Modest Nature (+SAtk, -Atk)
- Stored Power
- Barrier
- Calm Mind
- Hidden Power [Fighting]

Solid enough defenses with Eviolite, especially after Barrier and Calm Mind. These moves will not only increase Munna's defensive power, but also its offensive power thanks to Stored Power. HP Fighting is there to hit Dark types. You get good defenses with the EVs, and even a bit to go in the Speed category. Synchronize is the most useful ability.