Valentines (Sylveon) @ Weakness Policy  
Ability: Pixilate  
Tera Type: Fairy  
EVs: 228 Atk / 104 Def / 176 Spe  
Adamant Nature  
- Quick Attack  
- Hyper Beam  
- Double-Edge  
- Charm  

Halloween (Regidrago) @ Life Orb  
Ability: Dragon's Maw  
Tera Type: Dragon  
EVs: 212 Atk / 120 Def / 176 Spe  
Naughty Nature  
- Outrage  
- Dragon Energy  
- Draco Meteor  
- Dragon Dance  

Christmas (Ogerpon-Hearthflame) (F) @ Hearthflame Mask  
Ability: Mold Breaker  
Tera Type: Fire  
EVs: 56 HP / 4 Atk / 244 SpD / 204 Spe  
Careful Nature  
- Power Whip  
- Ivy Cudgel  
- Knock Off  
- Superpower