Counter that Pokémon! SM v.2

[Christos]

Landorus-Therian @ Leftovers
Ability: Intimidate
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Earthquake
- Knock Off
- U-Turn
- Stone Edge

 

[Nah]

Landorus-Therian @ Leftovers
Ability: Intimidate
EVs: 248 HP / 232 Def / 28 SpD
Relaxed Nature
- Earthquake
- Knock Off
- U-Turn
- Hidden Power Ice

=)

 

[Mobile Tsk]

Avalugg @ Leftovers
Ability: Sturdy
252 HP / 4 Def / 252 SpD
Careful Nature
- Avalanche
- Rapid Spin
- Earthquake
- Recover

 

[wolf]

Clawitzer @ Choice Specs
Ability: Mega Launcher
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
- Scald
- Ice Beam
- Dark Pulse
- Aura Sphere

 

[PlatinumDude]

Tapu Fini:

-Calm Mind
-Scald
-Moonblast
-Taunt
Nature: Timid
EVs: 252 HP/4 Def/252 Spe
Item: Leftovers

Fini resists all of Clawitzer's moves and can avoid a burn from Scald thanks to Misty Surge summoning Misty Terrain. From there, it can use Clawitzer as setup bait with Calm Mind

 

[Sirfetch’d]

Venusaur @ Venusaurite
Ability: Chlorophyll
EVs: 232 HP / 180 SpA / 80 SpD / 16 Spe
Modest Nature
- Giga Drain
- Sludge Bomb
- Synthesis
- Hidden Power Fire

Doesn't fear either of Fini's STABs and can take it out with Sludge Bomb.

 

[Radiating]

Alakazam @ Alakazite
Ability: Magic Guard
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Psychic
- Shadow Ball
- Focus Blast
- Taunt

 

[Sirfetch’d]

Tapu Lele @ Choice Scarf
Ability: Psychic Surge
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Psychic
- Moonblast
- Shadow Ball
- Hidden Power Fire

Tapu Lele is only a check to this Venusaur set. Lele cannot switch into a Sludge Bomb.

180+ SpA Venusaur-Mega Sludge Bomb vs. 0 HP / 0 SpD Tapu Lele: 260-308 (92.5 - 109.6%) -- 56.3% chance to OHKO

 

[Fawful_X]

Alakazam @ Alakazite
Ability: Magic Guard
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Psychic
- Shadow Ball
- Focus Blast
- Taunt

Mawile @ Mawilite
Ability: Hyper Cutter (Huge Power)
EVs: 252 HP/252 Atk/4 Def
Adamant Nature
- Sucker Punch
- Play Rough
- Fire Fang
- Iron Head

 

[HeroLinik]

Heatran @ Grassium Z
Ability: Flash Fire
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Magma Storm
- Earth Power
- Solar Beam
- Flash Cannon

 

[Fawful_X]

Mienshao @ Fightium Z
Ability: Reckless
EVs: 252 Atk/252 Spe/4 HP
Adamant Nature
-High Jump Kick
-Rock Slide
-U-Turn
-Protect

 

[PlatinumDude]

Mienshao @ Fightium Z
Ability: Reckless
EVs: 252 Atk/252 Spe/4 HP
Adamant Nature
-High Jump Kick
-Rock Slide
-U-Turn
-Protect

Not a counter because Magma Storm has a decent chance to KO Mienshao on the switch-in and if it survives, the residual damage from Magma Storm will finish it off. Bloom Doom also outright KOs it.

Will counter Heatran:

Charizard Y:

-Fire Blast
-Solar Beam
-Focus Blast
-Dragon Pulse
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Charizardite Y

Mega Charizard Y's typing and surprisingly good special bulk let it wall the entirety of Heatran's moveset, then threaten it with Focus Blast

 

[Sirfetch’d]

Chandelure @ Choice Specs
Ability: Flash Fire
EVs: 248 HP / 252 SpA / 8 SpD
Modest Nature
IVs: 1 Atk
- Hidden Power [Rock]
- Fire Blast
- Energy Ball
- Shadow Ball

Dragon Pulse cannot 2hko, while HP Rock OHKOs in return.

Honestly the Zards are pretty hard to counter, but I wanted to post something more creative than some fat tank. So max HP Chandelure lets go

 

[Sirfetch’d]

Hippowdon @ Choice Band
Ability: Sand Stream
EVs: 252 HP / 252 Atk / 4 Def
Adamant Nature
- Ice Fang
- Earthquake
- Stone Edge
- Crunch

252+ Atk Choice Band Hippowdon Ice Fang vs. 4 HP / 0 Def Garchomp: 440-520 (122.9 - 145.2%) -- guaranteed OHKO

 

[Radiating]

Tapu Fini @ Air Balloon
Ability: Misty Surge
EVs: 248 HP / 192 Def / 16 SpD / 52 Spe
Calm Nature
- Taunt
- Nature's Madness
- Moonblast
- Scald

 

[Christos]

Volcanion @ Grassium Z
Ability: Water Absorb
EVs: 252 Spa / 4 SpD / 252 Spe
Modest Nature
- Steam Eruption
- Fire Blast
- Sludge Bomb
- Solarbeam

 

[Sirfetch’d]

Raikou @ Choice Specs
Ability: Pressure
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
- Thunderbolt
- Volt Switch
- Hidden Power Ice
- Shadow Ball

Without Specs, Volcanion does not have the power it needs to pick up important KOs and allows Raikou to survive any attack and then outspeed and KO with Thunderbolt.

 

[Radiating]

Excadrill @ Choice Scarf
Ability: Mold Breaker
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Earthquake
- Iron Head
- Rock Slide
- Rapid Spin

 

[Sirfetch’d]

Tangrowth @ Rocky Helmet
Ability: Regenerator
EVs: 248 HP / 212 Def / 48 SpD
Relaxed Nature
- Giga Drain
- Knock Off
- Sleep Powder
- Hidden Power Ice

Iron head has a .1 chance to 4HKO while Giga Drain 2HKOs after Rocky Helmet damage. Tangrowth can also put it to sleep and not worry about taking damage at all.

 

[Mobile Tsk]

Magmortar @ Grassium-Z
Ability: Vital Spirit
EVs: 4 HP / 252 SpA / 252 Spe
Modest Nature
- Fire Blast
- Solar Beam
- Clear Smog
- Hidden Power Ice