Hopes and Dreams (Landorus-Therian) @ Rocky Helmet
Ability: Intimidate
EVs: 248 HP / 192 Def / 28 SpD / 40 Spe
Impish Nature
- Stealth Rock
- Hidden Power [Ice]
- U-turn
- Earthquake

Reality (Heatran) @ Choice Scarf
Ability: Flash Fire
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Fire Blast
- Flash Cannon
- Earth Power
- Stone Edge / Will-O-Wisp

or

Heatran @ Leftovers / Groundium Z
Ability: Flash Fire
EVs: 252 HP / 4 SpA / 252 Spe or 252 SpA / 4 SpD / 252 Spe (if you choose groundium)
Timid Nature
- Magma Storm
- Earth Power
- Taunt
- Toxic

Tapu Bulu @ Assault Vest
Ability: Grassy Surge
EVs: 248 HP / 60 Atk / 56 SpD / 144 Spe or 252 HP / 232 SpD / 24 Spe
Adamant / Careful Nature
- Horn Leech
- Wood Hammer
- Superpower
- Nature's Madness

Best Tapu (Tapu Koko) @ Choice Specs
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Hidden Power [Ice]
- Volt Switch
- Thunderbolt
- Dazzling Gleam

have faith :) (Medicham-Mega) @ Medichamite
Ability: Pure Power
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Fake Out
- High Jump Kick
- Zen Headbutt
- Ice Punch

Toxapex @ Payapa Berry / Iapapa Berry / Black Sludge
Ability: Regenerator
EVs: 248 HP / 8 Def / 252 SpD
Calm Nature
IVs: 0 Atk
- Scald
- Haze
- Recover
- Toxic Spikes / Toxic