Clefairy @ Eviolite  
Ability: Friend Guard  
Level: 50  
EVs: 252 HP / 92 Def / 164 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Moonblast  
- Follow Me  
- Heal Pulse  
- Protect

Unown
Move options:
- offensive: Dazzling Gleam
- supportive: Encore, Icy Wind, Helping Hand, Life Dew, After You

Unown
Offensive calcs:
- 0 SpA Clefairy Moonblast vs. 0 HP / 4 SpD Urshifu-Single Strike: 216-256 (123.4 - 146.2%) -- guaranteed OHKO
- 0 SpA Clefairy Moonblast vs. 0 HP / 0 SpD Urshifu-Rapid Strike: 108-128 (61.7 - 73.1%) -- guaranteed 2HKO
Defensive calcs:
- 252+ Atk Landorus-T Earthquake vs. 252 HP / 92 Def Eviolite Clefairy: 76-91 (42.9 - 51.4%) -- 6.3% chance to 2HKO
- 252 SpA Mega Charizard-Y Heat Wave vs. 252 HP / 164+ SpD Eviolite Clefairy in Sun: 73-87 (41.2 - 49.1%) -- guaranteed 3HKO
- 252+ SpA Mega Charizard-Y Overheat vs. 252 HP / 164+ SpD Eviolite Clefairy in Sun: 148-175 (83.6 - 98.8%) -- guaranteed 2HKO
- +2 252 SpA Fairy Aura Mega Meowstic Moonblast vs. 252 HP / 164+ SpD Eviolite Clefairy: 151-178 (85.3 - 100.5%) -- 6.3% chance to OHKO
- +2 252 SpA Mega Meowstic Expanding Force (120 BP) vs. 252 HP / 164+ SpD Eviolite Clefairy in Psychic Terrain: 139-165 (78.5 - 93.2%) -- guaranteed 2HKO

Unown
Useful partners:
- set-up Pokémon: Mega Dhelmise, Mega Kangaskhan, Galarian Moltres, Snorlax