M.medicham

Medicham @ Medichamite
Ability: Pure Power
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Bullet Punch
- High Jump Kick
- Thunder Punch
- Ice Punch

Tapu Koko @ Magnet
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunderbolt
- Taunt
- U-turn
- Hidden Power [Ice]

Greninja (F) @ Choice Specs
Ability: Battle Bond
EVs: 4 Atk / 252 SpA / 252 Spe
Timid Nature
- Hydro Pump
- U-turn
- Dark Pulse
- Water Shuriken

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 88 Def / 168 SpD
Relaxed Nature
- Spikes
- Leech Seed
- Protect
- Power Whip

Landorus-Therian @ Rocky Helmet
Ability: Intimidate
EVs: 248 HP / 212 Def / 24 SpD / 24 Spe
Impish Nature
- Stealth Rock
- U-turn
- Earthquake
- Hidden Power [Ice]

Tapu Fini @ Leftovers
Ability: Misty Surge
EVs: 224 HP / 200 Def / 16 SpD / 68 Spe
Calm Nature
IVs: 0 Atk
- Moonblast
- Nature's Madness
- Defog
- Taunt

Bp is to help beat faster threats that are weak to it, as well as help weaken mons for an ash greninja shuriken sweep. bp is also nice against dugtrio w/o sucker punch. hjk is for power and ice punch for lando and other 4x weak mons. thunder punch 2hkos m.sab under terrains and deals with celesteela with out having to worry about protect mind games.

koko provides terrain for medi as well as being a really good offensive pivot, bringing in medi a lot of the time. taunt is to helo against web teams, tho taunt magic coat is always a 50/50.

greninja also provides itself as a nice pivot luring bulk waters which both koko and medi can break for it. with spikes, iron barbs and rocky helmet on lando and bp, this can all set up for a shuriken win con quite nicely

ferrothorn provides the spikes, elec resist and helps chip away at the team and pressure defogers such as fini. protect is to help chip at medicham and weaken z-moves used against ferro, as well as provide recovery/chip off leech seed for a free turn. Ferro can run rocky helmet for extra chip as it can get extra recovery from protect

lando-t does as lando-t does...

fini is there to to help with both ferros and landos weaknesses completing the core, though it loses to medi bad (but what doesnt now).
fini also provides an ash gren and keldeo switch in and can weaken its switchins with natures for the rest of the team, once again heading for the ash gren clean.