[OU] Mega Lopunny + Mew Balance

Slowking @ Leftovers
Ability: Regenerator
EVs: 248 HP / 184 Def / 76 SpD
Calm Nature
IVs: 0 Atk
- Calm Mind
- Psyshock
- Scald
- Slack Off

Lopunny-Mega @ Lopunnite
Ability: Limber
Shiny: Yes
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- High Jump Kick
- Fake Out
- Ice Punch
- Return

Serperior @ Leftovers
Ability: Contrary
EVs: 56 HP / 200 SpA / 252 Spe
Timid Nature
IVs: 0 Atk / 30 SpA / 30 Spe
- Leaf Storm
- Substitute
- Leech Seed
- Hidden Power [Fire]

Heatran @ Leftovers
Ability: Flash Fire
EVs: 248 HP / 8 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Lava Plume
- Toxic
- Taunt
- Stealth Rock

Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Earthquake
- Stone Edge
- U-turn
- Knock Off

Mew @ Leftovers
Ability: Synchronize
EVs: 240 HP / 228 Def / 40 Spe
Impish Nature
- Will-O-Wisp
- Knock Off
- Roost
- Taunt