Magmortar @ Magmortarite  
Ability: Vital Spirit  
Level: 50  
EVs: 244 HP / 84 Def / 36 SpA / 4 SpD / 140 Spe  
Calm Nature  
IVs: 0 Atk  
- Heat Wave  
- Protect  
- Fire Blast  
- Taunt

Unown
Move options:
- offensive: Scald, Flamethrower, Overheat, Hidden Power Ice

Unown
Offensive calcs:
- 36 SpA Mega Magmortar Fire Blast vs. 252 HP / 4 SpD Mega Dhelmise: 180-212 (101.6 - 119.7%) -- guaranteed OHKO
Defensive calcs:
- 252+ Atk Landorus-T Earthquake vs. 244 HP / 84 Def Magmortar: 152-182 (83.9 - 100.5%) -- 6.3% chance to OHKO
- 252 SpA Life Orb Landorus Earth Power vs. 244 HP / 4+ SpD Mega Magmortar: 151-182 (83.4 - 100.5%) -- 6.3% chance to OHKO

Unown
Useful partners:
- speed control: Regieleki, Rillaboom