aaa

try arceus dark (with fire blast) later on arceus-water place, you trade better matchup versus kyo for a better matchup against ferrothorn

A Huge Whale (Kyogre) @ Blue Orb
Ability: Drizzle
EVs: 180 HP / 252 SpA / 76 Spe
Modest Nature
IVs: 0 Atk
- Origin Pulse
- Calm Mind
- Ice Beam
- Rest

Groudon @ Red Orb
Ability: Drought
EVs: 152 HP / 236 Atk / 44 SpD / 76 Spe
Adamant Nature
- Stealth Rock
- Precipice Blades
- Rock Tomb
- Fire Punch

Zygarde-Complete @ Leftovers
Ability: Power Construct
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Toxic
- Thousand Arrows
- Rest
- Dragon Tail

Yveltal @ Choice Scarf
Ability: Dark Aura
EVs: 32 HP / 4 Def / 232 SpA / 240 Spe
Modest Nature
- Dark Pulse
- Oblivion Wing
- Foul Play
- U-turn

Arceus-Water @ Splash Plate
Ability: Multitype
EVs: 252 HP / 132 Def / 124 Spe
Bold Nature
IVs: 0 Atk
- Defog
- Ice Beam
- Toxic  / Fire Blast
- Recover

Magearna @ Leftovers
Ability: Soul-Heart
EVs: 252 HP / 4 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Fleur Cannon
- Volt Switch
- Heart Swap
- Pain Split