Mootune

Set
Moves: Resonate, Peace Of Mind, Raging Howl, Dissonant Chord/Harmonious Chord

Item: Typeless Essence

Ability: Tone Deaf

Personality: Smart, Robust, Very Frail

TPs: 200 Ranged Attack, 200 Melee Defense, 52 Energy, 48 Speed

Reason
200 Ranged Attack is to hit really hard, and 52 Energy allows 3 Raging Howls and a Resonate. Resonate is your STAB that can also set up and Raging Howl is also STAB that can 0HKO lots of Loomians. Peace of Mind can set up for as very powerful sweep. Dissonant Chord shouldn't be commonly used, but handles Obsidrugons. Harmonious Chord can be used for putting the opponent's Loomians to sleep.

Tone Deaf is great for raising Mootune's Attack even more and works great with Typeless Essence, Resonate, and Raging Howl.

Typeless Essence is also great for raising Mootune's Attack because all the moves it has are Typeless and this also works great with Tone Deaf.