Charizard-Mega-Y @ Charizardite Y  
Ability: Drought  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Flamethrower  
- Solar Beam  
- Focus Blast  
- Overheat

Weavile @ Choice Band  
Ability: Pressure  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Pursuit  
- Ice Shard  
- Knock Off  
- Icicle Crash

Serperior @ Rocky Helmet  
Ability: Contrary  
EVs: 56 HP / 200 SpA / 252 Spe  
Timid Nature  
IVs: 1 Atk / 30 Def / 30 SpD / 30 Spe  
- Leaf Storm  
- Hidden Power [Rock]  
- Glare  
- Synthesis

Heatran @ Leftovers  
Ability: Flash Fire  
EVs: 248 HP / 12 Def / 248 SpD  
Calm Nature  
IVs: 0 Atk  
- Roar  
- Stealth Rock  
- Earth Power  
- Magma Storm

Excadrill @ Leftovers  
Ability: Mold Breaker  
EVs: 32 HP / 56 Def / 168 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Earthquake  
- Iron Head  
- Rapid Spin

Slowbro @ Colbur Berry  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Future Sight  
- Flamethrower  
- Thunder Wave  
- Slack Off

Charizard Y Weavile Offense

by Xray

Charizard Y is a strong threat that has few switchins. Those switchins tend to be vulnerable to being trapped by Pursuit, such as Mega Latias and Chansey. Weavile is chosen over the traditional Tyranitar because it provides the team with more immediate power and speed control. Serperior is a great water resist that can also use Synthesis in Sun for greater longevity. It helps with spreading paralysis and weakening opposing fire types with Hp Rock for Charizard. Excadrill is Swords Dance for the matchup versus stall, and Slowbro is Colbur Berry to help with dark types such as Bisharp and Weavile. Flamethrower is strong under sun and can be used to weaken grass types that tend to switch on Slowbro. Future Sight is used to give the team even more breaking power versus fat, but scald or psychic can be used instead. Overheat is used on Charizard for immediate power which can come in handy quite a bit. Other options on this team include Defog on Charizard or Roost over Overheat, and taunt on Heatran or Lava Plume.

Columns Mode / Stat Colours / Light Mode