Venusaur @ Life Orb  
Ability: Chlorophyll  
Level: 50  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Energy Ball  
- Protect  
- Sludge Bomb  
- Earth Power

Unown
Options:
- offensive: Giga Drain, Weather Ball, Solar Beam
- supportive: String Shot, Growth, Sleep Powder
- items: Focus Sash
- Nature: Modest

Unown
Offensive calcs:
- 252 SpA Life Orb Venusaur Earth Power vs. 252 HP / 4 SpD Mega Dhelmise: 101-120 (57 - 67.7%) -- guaranteed 2HKO
- 252 SpA Life Orb Venusaur Sludge Bomb vs. 0 HP / 0 SpD Mega Meowstic-F: 174-205 (116.7 - 137.5%) -- guaranteed OHKO

Unown
Useful partners:
- Sun setter: Torkoal, Mega Charizard-Y
- others: Mega Hawlucha