Manaphy @ Leftovers
Ability: Hydration
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Rain Dance
- Scald
- Tail Glow
- Ice Beam
Charizard-Mega-Y @ Charizardite Y
Ability: Drought
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Fire Blast
- Focus Blast
- Roost
- Solar Beam
Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Thunder Wave
- Leech Seed
- Stealth Rock
- Knock Off
This balance core is fair amount of synergy :^]. I started with Manaphy because I love seeing set-ups and sweeping. I added Rain Dance so that Manaphy can stay in on Klefki and get free set up and so that Manaphy can eat up them t-waves/toxics/burns and it allows Ferrothorn to take Fire Type Hits more well. I added Ice Beam since Mega Charizard-Y doesn't take Lati Twins, Mega Alt, and Bulky chomp well. But Then Mega Venusaur strolls in to bop Manaphy. SO I added Mega Charizard-Y to toast the Mega Venusaur. I noticed a that Thundurus bops it so I added Ferrothorn with max hp max defense. I put knock off so that if I catch the mixed thundy on the switch in Thundy's superpower would be a 3HKO and so that chansey would have a harder time switching in to Manaphy. I also put t-wave to cripple down fast pokemon mainly the lati twins and any physical setting up mons. Ferrothorn also takes many special hits like Dracos, Tbolts, etc.
76 Atk Life Orb Thundurus Superpower vs. 252 HP / 252+ Def Ferrothorn: 161-192 (45.7 - 54.5%) -- 7.4% chance to 2HKO after Leftovers recovery
76 Atk Thundurus Superpower vs. 252 HP / 252+ Def Ferrothorn: 124-148 (35.2 - 42%) -- 84.9% chance to 3HKO after Leftovers recovery