Project National Dex OU: Break This Core (Week 41: Mawile-Mega + Tapu Koko)

[K302]

Congratulations to Ineros for winning this week of Break this Core!

Our new core will be Mawile-Mega + Tapu Koko!



How will YOU break this core? Submissions end Friday!

Sets

Tapu Koko @ Heavy-Duty Boots
Ability: Electric Surge
Tera Type: Ice
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunderbolt
- U-turn
- Roost
- Hidden Power [Ice]

Mawile-Mega @ Mawilite
Ability: Intimidate
Tera Type: Steel
EVs: 116 HP / 252 Atk / 140 Spe
Adamant Nature
- Play Rough
- Knock Off
- Fire Fang
- Thunder Punch

 

[Ineros]

Volcarona @ Heavy-Duty Boots
Ability: Flame Body
Hidden Power: Ground
Tera Type: Steel
EVs: 248 HP / 200 Def / 60 Spe
Timid Nature
- Quiver Dance
- Flamethrower
- Hidden Power [Ground]
- Roost
Just qd in front of either of them and you insta win because maw doesn’t have sucker and koko will lose to Volc just roosting and clicking qd. Maw clicking knock doesn’t matter because once you boost you can just win the game right there because most Koko offenses do not like a boosted Volc.

 

[Haok]

Great Tusk @ Choice Scarf
Ability: Protosynthesis
Tera Type: Ground
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Headlong Rush
- Close Combat
- Knock Off
- Ice Spinner

252 Atk Tera Ground Great Tusk Headlong Rush vs. 0 HP / 4 Def Tera Ice Tapu Koko: 300-354 (106.7 - 125.9%) -- guaranteed OHKO
gg

 

[Flames Of Elixir]

Gouging Fire @ Heavy-Duty Boots
Ability: Protosynthesis
Tera Type: Poison
EVs: 252 HP / 136 Atk / 32 SpD / 88 Spe
Jolly Nature
- Dragon Dance
- Flare Blitz
- Earthquake
- Morning Sun

Pretty simple set.
Gouging fire is a great check to M-Mawile and Tapu Koko. The given EVs spread allows Gouging Fire to outpseed Tapu Koko at +1 and OHKO it with Flare Blitz (Earthquake at +1 2HKO's Tera ice Tapu Koko). It also OHKO's M-Mawile with Flare Blitz at +1. M-Mawile can only hit Gouging Fire with Knock Off and Play Rough (it's not running sucker punch in the set) which are both resisted by tera Poison.

NOTE: You can use Earthquake but it is less effective for removing huge threats like this in one go.

CALCS:
+1 136 Atk Gouging Fire Flare Blitz vs. 0 HP / 0 Def Tapu Koko: 282-333 (100.3 - 118.5%) -- guaranteed OHKO
252 SpA Tapu Koko Thunderbolt vs. 252 HP / 32 SpD Gouging Fire in Electric Terrain: 79-93 (19 - 22.4%) -- possible 5HKO

+1 136 Atk Gouging Fire Flare Blitz vs. 116 HP / 0 Def Mawile-Mega: 408-480 (151.1 - 177.7%) -- guaranteed OHKO
136 Atk Gouging Fire Flare Blitz vs. 116 HP / 0 Def Mawile-Mega: 270-320 (100 - 118.5%) -- guaranteed OHKO
252+ Atk Mawile-Mega Play Rough vs. 252 HP / 0 Def Tera Poison Gouging Fire: 59-70 (14.2 - 16.9%) -- possible 6HKO
252+ Atk Mawile-Mega Knock Off (97.5 BP) vs. 252 HP / 0 Def Tera Poison Gouging Fire: 85-101 (20.5 - 24.3%) -- guaranteed 5HKO

 

[Hittite Jumpscare]

Behold!



Camerupt @ Assault Vest
Ability: Solid Rock
Tera Type: Rock
EVs: 32 HP / 252 SpA / 224 Spe
Modest Nature
IVs: 0 Atk
- Earth Power
- Fire Blast
- Overheat
- Tera Blast

Given EVs to outspeed Mega Mawile. Even with tera, Tapu Koko can't 2HKO Camerupt with crits.

Calcs:
252+ SpA Camerupt Earth Power vs. 116 HP / 0 SpD Mawile-Mega: 290-344 (107.4 - 127.4%) -- guaranteed OHKO

252+ SpA Camerupt Earth Power vs. 0 HP / 4 SpD Tapu Koko: 354-416 (125.9 - 148%) -- guaranteed OHKO

252 SpA Tera Ice Tapu Koko Hidden Power Ice vs. 32 HP / 0 SpD Assault Vest Camerupt: 67-81 (23.1 - 28%) -- 82.1% chance to 4HKO

252+ SpA Camerupt Fire Blast vs. 0 HP / 4 SpD Tera Ice Tapu Koko: 428-506 (152.3 - 180%) -- guaranteed OHKO

252+ SpA Camerupt Earth Power vs. 0 HP / 4 SpD Tapu Koko: 354-416 (125.9 - 148%) -- guaranteed OHKO

 

[jzplr]

Landorus-Therian @ Choice Scarf
Ability: Intimidate
Tera Type: Ground
EVs: 152 HP / 132 Atk / 224 Spe
Jolly Nature
- Earthquake
- Stone Edge
- U-turn
- Defog

132 Atk Landorus-Therian Earthquake vs. 116 HP / 0 Def Mawile-Mega: 270-320 (100 - 118.5%) -- guaranteed OHKO
132 Atk Landorus-Therian Earthquake vs. 0 HP / 4 Def Tapu Koko: 372-440 (132.3 - 156.5%) -- guaranteed OHKO
252 SpA Tera Ice Tapu Koko Hidden Power Ice vs. 152 HP / 0 SpD Tera Ground Landorus-Therian: 192-228 (53.7 - 63.8%) -- guaranteed 2HKO
132 Atk Tera Ground Landorus-Therian Earthquake vs. 0 HP / 4 Def Tera Ice Tapu Koko: 248-294 (88.2 - 104.6%) -- 31.3% chance to OHKO

Landorus-Therian kills Mawile-Mega and if you Tera Ground you win the 1v1 against Tapu Koko if they Tera Ice.

This replay demonstrates this particular Landorus-Therian set taking advantage of an otherwise nearly perfect counterteam.

https://replay.pokemonshowdown.com/gen9nationaldex-2120724331-gviolln5pul2w64dbydsraaco3mhn0rpw?p2