Samurott @ Samurite  
Ability: Shell Armor  
Level: 50  
EVs: 244 HP / 252 Atk / 12 Def  
Adamant Nature  
IVs: 0 SpA  
- Razor Shell  
- Swords Dance  
- Sacred Sword  
- Protect

Unown
Move options:
- offensive: X-Scissor
- supportive: Slack Off, Substitute

Unown
Offensive calcs:
- +1 252+ Atk Mega Samurott Sacred Sword vs. 68 HP / 4 Def Kartana: 150-178 (104.8 - 124.4%) -- guaranteed OHKO
- +1 252+ Atk Mega Samurott Razor Shell vs. 236 HP / 4 Def Incineroar: 258-306 (129 - 153%) -- guaranteed OHKO
- +2 252+ Atk Mega Samurott Sacred Sword vs. 252 HP / 0 Def Glastrier: 204-240 (98.5 - 115.9%) -- 87.5% chance to OHKO
Defensive calcs:
- 4 Atk Kartana Leaf Blade vs. 244 HP / 12 Def Mega Samurott: 168-200 (83.5 - 99.5%) -- guaranteed 2HKO

Unown
Useful partners:
- overriding Psychic Terrain: Rillaboom, Tapu Koko, Tapu Fini
- healing / redirection: Comfey, Clefairy