Venusaur-Mega @ Black Sludge  
Ability: Thick Fat  
EVs: 252 HP / 180 Def / 76 SpD  
Bold / Impish / Relaxed Nature  
IVs: 0 Atk  
- Leech Seed  
- Synthesis  
- Toxic / Sludge Bomb
- Grass Knot / Giga Drain / Earthquake