Resource LC Checks Compendium (Marvelous Edition)

Nineage

Pugnacious.
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phanpy.gif
The Little Cup Checks Compendium
phanpy.gif

(Disclaimer: Just because I included a Phanpy sprite doesn't mean its good)
What am I looking at?
The idea of a checks compendium is to serve as a general teambuilding resource by listing checks to the most dominant Pokemon in a metagame. The compendium gives a visual representation of what beats the metagame's threats for the sake of being a fast source of information.

How is this organized?
The Pokemon in the compendium below are listed alphabetically (I know past compendiums have done this by viability ranking, but to me this just seems subject to change and hard to constantly update). Underneath each Pokemon, we see its checks, sorted into three categories: GSI, SSI, and NSI. GSI, or Guaranteed Switch-Ins, are Pokemon that can switch into and beat the given threat all of the time, within reason (barring extreme hax or incredibly niche coverage moves). SSI, or Safe Switch-Ins, can switch into and beat the threat situationally. They may need to switch in on a specific move, or require that the threat not be running a somewhat commonly seen coverage move. NSI, or Non-Switch-Ins, can beat the given threat only if they are given a free switch in. Within the categories, Pokemon are organized roughly by viability rankings. This is not the place to discuss the order in which Pokemon are listed unless something is drastically off: we have Viability Rankings for that.

Which Pokemon are listed?
Right now the Pokemon with their checks listed are everything ranked A- or higher in the Viability Rankings. Over the next little while, I aim to include everything ranked B or higher, as anything lower than that is probably niche enough that it doesn't warrant a specific check being run. The Pokemon listed as checks are usually all the Pokemon that fit the category that are rank B or higher. The exception is Pokemon whose sole niche comes from being able to beat a given threat, which are listed even if they are below B rank (see: Stunky being listed as a GSI to Abra).

How can I help?
I'm sure I screwed this up somewhere. Did I list Pawniard as a top Timburr counter? Did I forget your favorite Pokemon when listing the checks to Nosepass? Let me know if I screwed something up (with reasoning/calcs, please) and I will fix it.

Man, this is the best!
Glad you like it! Huge props go to Corporal Levi for helping me look this over. Please like and subscribe for more compendiums like this!
063.png
Abra
GSI:
088-a.png
434.png
446.png

SSI:
629.png
050.png
624.png
597.png

NSI:
682.png
318.png
710.png
190.png
228.png


318.png
Carvanha
GSI:
532.png
597.png
081.png
453.png

SSI:
120.png
619.png
629.png
170.png
590.png
088-a.png
209.png
546.png
682.png
453.png
747.png

NSI:
495.png
624.png
090.png
341.png
690.png


170.png
Chinchou
GSI:
590.png
597.png
710.png
(super)
170.png
546.png
495.png
446.png

SSI:
532.png
050.png
095.png
453.png
682.png
529.png
459.png
328.png

NSI:
619.png
063.png
624.png
449.png
559.png


341.png
Corphish
GSI:
590.png
170.png
453.png
546.png
597.png

SSI:
495.png
081.png
209.png
690.png
747.png

NSI:
120.png
619.png
090.png
710.png
239.png


546.png
Cottonee
GSI:
590.png
077.png
081.png
597.png
682.png
453.png
088-a.png
627.png
747.png
636.png

SSI:
092.png
084.png
710.png
(super)
037.png
446.png
690.png

NSI:
629.png
037-a.png
698.png


050.png
Diglett
GSI: Nothing (Arena Trap)
SSI: Nothing (Arena Trap)
NSI:
619.png
120.png
532.png
629.png
590.png
495.png
092.png
749.png
209.png
090.png
318.png
710.png
(super)
546.png
597.png
341.png
079.png
559.png
710.png
(small)
564.png


084.png
Doduo
GSI: Brave Bird Recoil
SSI:
095.png
170.png
209.png
090.png
081.png
566.png
138.png
564.png

NSI:
629.png
077.png
088-a.png
624.png
341.png
190.png
747.png
690.png
239.png
679.png
449.png


557.png
Dwebble
GSI:
619.png
532.png
120.png
749.png
597.png
090.png
341.png
529.png
564.png
449.png
747.png

SSI:
590.png
209.png
682.png
546.png
559.png
710.png
079.png

NSI:
624.png
088-a.png
081.png
318.png
690.png


597.png
Ferroseed
GSI:
532.png
619.png
077.png
453.png
749.png
559.png
037.png
636.png

SSI:
629.png
624.png
710.png
(super)
240.png
255.png

NSI:
063.png
084.png
627.png
190.png


590.png
Foongus
GSI:
629.png
453.png
088-a.png
597.png
446.png

SSI:
590.png
624.png
081.png
092.png
077.png
710.png
(super)
636.png

NSI:
063.png
084.png
627.png
037-a.png
037.png
255.png
698.png


092.png
Gastly
GSI:
088-a.png
434.png
446.png

SSI:
629.png
597.png
624.png

NSI:
120.png
619.png
532.png
063.png
318.png
453.png
559.png
190.png
239.png
228.png
690.png
747.png


088-a.png
Grimer-Alola
GSI:
749.png
095.png
449.png

SSI:
050.png
453.png
624.png
747.png
529.png

NSI:
557.png
690.png


081.png
Magnemite
GSI:
170.png
449.png
446.png
529.png
328.png

SSI:
619.png
532.png
050.png
590.png
597.png
749.png
095.png
710.png
(super)
NSI:
077.png
453.png
255.png
037.png


747.png
Mareanie
GSI:
120.png
050.png
597.png
170.png
090.png
081.png
453.png
079.png

SSI:
063.png
749.png
095.png
624.png
328.png
446.png

NSI:
629.png
239.png


619.png
Mienfoo
GSI:
453.png
209.png
682.png
690.png
747.png
568.png

SSI:
629.png
590.png
749.png
546.png
079.png
636.png

NSI:
532.png
077.png
084.png
063.png
627.png
566.png
449.png
276.png


749.png
Mudbray
GSI:
120.png
495.png
710.png
(super)
710.png
(small)
079.png

SSI:
341.png
590.png

NSI:
209.png
597.png
090.png
170.png
318.png
546.png
037.png
037-a.png


095.png
Onix
GSI:
120.png
532.png
619.png
590.png
749.png
597.png
710.png
(super)
546.png
529.png
079.png
449.png

SSI:
495.png
090.png
341.png

NSI:
050.png
063.png
318.png
564.png


624.png
Pawniard
GSI:
619.png
532.png
077.png
749.png
453.png

SSI:
050.png
559.png
449.png
568.png
228.png
636.png

NSI:
120.png
624.png
063.png
095.png
590.png
597.png
529.png


077.png
Ponyta
GSI:
170.png
446.png
690.png
747.png
449.png
079.png

SSI:
120.png
749.png
090.png
138.png
341.png
564.png

NSI:
532.png
050.png
318.png
566.png
559.png


710.png
Pumpkaboo-Super
GSI:
629.png
077.png
088-a.png
559.png
636.png
228.png
037.png
255.png

SSI:
532.png
624.png
627.png

NSI:
590.png
090.png
453.png
318.png
092.png
084.png


090.png
Shellder
GSI:
081.png
597.png

SSI:
532.png
170.png
209.png
682.png
546.png
446.png
079.png

NSI:
619.png
120.png
624.png
495.png
088-a.png
690.png
559.png
239.png


495.png
Snivy
GSI:
629.png
590.png
077.png
088-a.png
636.png

SSI:
092.png
084.png
597.png
453.png
255.png
459.png

NSI:
120.png
063.png
624.png
081.png
710.png
(super)
037.png


209.png
Snubbull
GSI:
590.png
636.png

SSI:
092.png
749.png
077.png
081.png
597.png
682.png
624.png
690.png

NSI:
120.png
495.png
063.png
088-a.png
453.png
449.png


682.png
Spritzee
GSI:
590.png
081.png
077.png
597.png
092.png
747.png
690.png
255.png

SSI:
624.png
453.png
088-a.png
446.png

NSI:
495.png
749.png


120.png
Staryu
GSI:
170.png
597.png
446.png

SSI:
590.png
682.png
710.png
(super)
546.png
088-a.png
747.png

NSI:
532.png
495.png
081.png
690.png
559.png
239.png


532.png
Timburr
GSI:
590.png
209.png
682.png
690.png

SSI:
629.png
453.png
546.png
636.png

NSI:
063.png
092.png
749.png
084.png
079.png
077.png
627.png
449.png
276.png
568.png


629.png
Vullaby
GSI:
095.png
170.png
090.png
209.png
682.png
564.png

SSI:
081.png
557.png

NSI:
624.png
239.png
037-a.png
698.png
 
Last edited:
Other Compendium-Related Fun

Abra
GSI: Grimer-Alola, Stunky, Munchlax
SSI: Vullaby, Diglett, Pawniard, Ferroseed
NSI: Spritzee, Carvanha, Pumpkaboo-Super, Aipom, Houndour

Carvanha
GSI: Timburr, Ferroseed, Magnemite, Croagunk
SSI: Staryu, Mienfoo, Vullaby, Chinchou, Foongus, Grimer-Alola, Snubbull, Cottonee, Spritzee, Croagunk, Mareanie
NSI: Snivy, Pawniard, Shellder, Corphish, Skrelp

Chinchou
GSI: Foongus, Ferroseed, Pumpkaboo-Super, Chinchou, Cottonee, Snivy, Munchlax
SSI: Timburr, Diglett, Onix, Croagunk, Spritzee, Drilbur, Snover, Trapinch
NSI: Mienfoo, Abra, Pawniard, Hippopotas, Scraggy

Corphish
GSI: Foongus, Chinchou, Croagunk, Cottonee, Ferroseed
SSI: Snivy, Magnemite, Snubbull, Skrelp, Mareanie
NSI: Staryu, Mienfoo, Shellder, Pumpkaboo-Super, Elekid

Cottonee
GSI: Foongus, Ponyta, Magnemite, Ferroseed, Spritzee, Croagunk, Grimer-Alola, Rufflet, Mareanie, Larvesta
SSI: Gastly, Doduo, Pumpkaboo-Super, Vulpix, Munchlax, Skrelp
NSI: Vullaby, Vulpix-Alola, Amaura

Diglett
GSI: None
SSI: None
NSI: Mienfoo, Staryu, Timburr, Vullaby, Foongus, Snivy, Gastly, Mudbray, Snubbull, Shellder, Carvanha, Pumpkaboo-Super, Cottonee, Ferroseed, Corphish, Slowpoke, Scraggy, Pumpkaboo-Small, Tirtouga

Doduo
GSI: None
SSI: Onix, Chinchou, Snubbull, Shellder, Magnemite, Archen, Omanyte, Tirtouga
NSI: Vullaby, Ponyta, Grimer-Alola, Pawniard, Corphish, Aipom, Mareanie, Skrelp, Elekid, Honedge, Hippopotas

Dwebble
GSI: Mienfoo, Timburr, Staryu, Mudbray, Ferroseed, Shellder, Corphish, Drilbur, Tirtouga, Hippopotas, Mareanie
SSI: Foongus, Snubbull, Spritzee, Cottonee, Scraggy, Pumpkaboo-Super, Slowpoke
NSI: Pawniard, Grimer-Alola, Magnemite, Carvanha, Skrelp

Ferroseed
GSI: Timburr, Mienfoo, Ponyta, Croagunk, Mudbray, Scraggy, Vulpix, Larvesta
SSI: Vullaby, Pawniard, Pumpkaboo-Super, Magby, Torchic
NSI: Abra, Doduo, Rufflet, Aipom

Foongus
GSI: Vullaby, Croagunk, Grimer-Alola, Ferroseed, Munchlax
SSI: Foongus, Pawniard, Magnemite, Gastly, Ponyta, Pumpkaboo-Super, Larvesta
NSI: Abra, Doduo, Rufflet, Vulpix-Alola, Vulpix, Torchic, Amaura

Gastly
GSI: Grimer-Alola, Stunky, Munchlax
SSI: Vullaby, Ferroseed, Pawniard
NSI: Staryu, Mienfoo, Timburr, Abra, Carvanha, Croagunk, Scraggy, Aipom, Elekid, Houndour, Skrelp, Mareanie

Grimer-Alola
GSI: Mudbray, Onix, Hippopotas
SSI: Diglett, Croagunk, Pawniard, Mareanie, Drilbur
NSI: Dwebble, Skrelp

Magnemite
GSI: Chinchou, Hippopotas, Munchlax, Drilbur, Trapinch
SSI: Mienfoo, Timburr, Diglett, Foongus, Ferroseed, Mudbray, Onix, Pumpkaboo-Super
NSI: Ponyta, Croagunk, Torchic, Vulpix

Mareanie
GSI: Staryu, Diglett, Ferroseed, Chinchou, Shellder, Magnemite, Croagunk, Slowpoke
SSI: Abra, Mudbray, Onix, Pawniard, Trapinch, Munchlax
NSI: Vullaby, Elekid

Mienfoo
GSI: Croagunk, Snubbull, Spritzee, Skrelp, Mareanie, Trubbish
SSI: Vullaby, Foongus, Mudbray, Cottonee, Slowpoke, Larvesta
NSI: Timburr, Ponyta, Doduo, Abra, Rufflet, Archen, Hippopotas, Taillow

Mudbray
GSI: Staryu, Snivy, Pumpkaboo-Super, Pumpkaboo-Small, Slowpoke
SSI: Corphish, Foongus
NSI: Snubbull, Ferroseed, Shellder, Chinchou, Carvanha, Cottonee, Vulpix, Vulpix-Alola

Onix
GSI: Staryu, Timburr, Mienfoo, Foongus, Mudbray, Ferroseed, Pumpkaboo-Super, Cottonee, Drilbur, Slowpoke, Hippopotas
SSI: Snivy, Shellder, Corphish
NSI: Diglett, Abra, Carvanha, Tirtouga

Pawniard
GSI: Mienfoo, Timburr, Ponyta, Mudbray, Croagunk
SSI: Diglett, Scraggy, Hippopotas, Trubbish, Houndour, Larvesta
NSI: Staryu, Pawniard, Abra, Onix, Foongus, Ferroseed, Drilbur

Ponyta
GSI: Chinchou, Munchlax, Skrelp, Mareanie, Hippopotas, Slowpoke
SSI: Staryu, Mudbray, Shellder, Omanyte, Corphish, Tirtouga
NSI: Timburr, Diglett, Carvanha, Archen, Scraggy

Pumpkaboo-Super
GSI: Vullaby, Ponyta, Grimer-Alola, Scraggy, Larvesta, Houndour, Vulpix, Torchic
SSI: Timburr, Pawniard, Rufflet
NSI: Foongus, Shellder, Croagunk, Carvanha, Gastly, Doduo

Shellder
GSI: Magnemite, Ferroseed
SSI: Timburr, Chinchou, Snubbull, Spritzee, Cottonee, Munchlax, Slowpoke
NSI: Mienfoo, Staryu, Pawniard, Snivy, Grimer-Alola, Skrelp, Scraggy, Elekid

Snivy
GSI: Vullaby, Foongus, Ponyta, Grimer-Alola, Larvesta
SSI: Gastly, Doduo, Ferroseed, Croagunk, Torchic, Snover
NSI: Staryu, Abra, Pawniard, Magnemite, Pumpkaboo-Super, Vulpix

Snubbull
GSI: Foongus, Larvesta
SSI: Gastly, Mudbray, Ponyta, Magnemite, Ferroseed, Spritzee, Pawniard, Skrelp
NSI: Staryu, Snivy, Abra, Grimer-Alola, Croagunk, Hippopotas

Spritzee
GSI: Foongus, Magnemite, Ponyta, Ferroseed, Gastly, Mareanie, Skrelp, Torchic
SSI: Pawniard, Croagunk, Grimer-Alola, Munchlax
NSI: Snivy, Mudbray

Staryu
GSI: Chinchou, Ferroseed, Munchlax
SSI: Foongus, Spritzee, Pumpkaboo-Super, Cottonee, Grimer-Alola, Mareanie
NSI: Timburr, Snivy, Magnemite, Skrelp, Scraggy, Elekid

Timburr
GSI: Foongus, Snubbull, Spritzee, Skrelp
SSI: Vullaby, Croagunk, Cottonee, Larvesta
NSI: Abra, Gastly, Mudbray, Doduo, Slowpoke, Ponyta, Rufflet, Hippopotas, Taillow, Trubbish

Vullaby
GSI: Onix, Chinchou, Shellder, Snubbull, Spritzee, Tirtouga
SSI: Magnemite, Dwebble
NSI: Pawniard, Elekid, Vulpix-Alola, Amaura
Also, because I know we have some HUGE compendium fans, I've included some nerdy data about how many times each Pokemon appears in this compendium. Its in a weird order right now because the compilation program I wrote was kinda bad, but I'll make it prettier someday (tm).

Code:
+ ------------------ + --- + --- + --- +
| Pokemon            | GSI | SSI | NSI |
+ ------------------ + --- + --- + --- +
| Grimer-Alola       |  6  |  3  |  4  |
| Stunky             |  2  |  0  |  0  |
| Munchlax           |  7  |  4  |  0  |
| Timburr            |  5  |  4  |  5  |
| Ferroseed          |  11 |  5  |  3  |
| Magnemite          |  5  |  5  |  3  |
| Croagunk           |  8  |  6  |  4  |
| Foongus            |  8  |  7  |  3  |
| Pumpkaboo-Super    |  3  |  6  |  4  |
| Chinchou           |  7  |  3  |  1  |
| Cottonee           |  3  |  6  |  2  |
| Snivy              |  2  |  2  |  6  |
| Ponyta             |  6  |  2  |  4  |
| Spritzee           |  4  |  6  |  1  |
| Mareanie           |  5  |  4  |  2  |
| Larvesta           |  5  |  4  |  0  |
| Mienfoo            |  4  |  2  |  5  |
| Staryu             |  4  |  2  |  7  |
| Mudbray            |  5  |  5  |  3  |
| Shellder           |  3  |  3  |  5  |
| Corphish           |  1  |  3  |  3  |
| Drilbur            |  3  |  2  |  1  |
| Tirtouga           |  2  |  2  |  2  |
| Hippopotas         |  5  |  1  |  5  |
| Scraggy            |  2  |  2  |  6  |
| Vulpix             |  2  |  1  |  4  |
| Vullaby            |  3  |  6  |  4  |
| Onix               |  2  |  4  |  1  |
| Trapinch           |  1  |  2  |  0  |
| Diglett            |  1  |  5  |  2  |
| Slowpoke           |  4  |  3  |  2  |
| Snubbull           |  3  |  5  |  2  |
| Skrelp             |  4  |  3  |  7  |
| Trubbish           |  1  |  1  |  1  |
| Pumpkaboo-Small    |  1  |  0  |  1  |
| Houndour           |  1  |  1  |  2  |
| Torchic            |  2  |  2  |  2  |
| Gastly             |  1  |  4  |  3  |
| Pawniard           |  0  |  9  |  8  |
| Snover             |  0  |  2  |  0  |
| Doduo              |  0  |  2  |  5  |
| Archen             |  0  |  1  |  2  |
| Omanyte            |  0  |  2  |  0  |
| Magby              |  0  |  1  |  0  |
| Abra               |  0  |  1  |  10 |
| Rufflet            |  1  |  1  |  4  |
| Dwebble            |  0  |  1  |  1  |
| Carvanha           |  1  |  0  |  8  |
| Aipom              |  1  |  0  |  4  |
| Elekid             |  1  |  0  |  7  |
| Vulpix-Alola       |  1  |  0  |  4  |
| Amaura             |  1  |  0  |  3  |
| Honedge            |  1  |  0  |  1  |
| Taillow            |  1  |  0  |  2  |
+ ------------------ + --- + --- + --- +
 
Last edited:
Stuff I think could stand to be swapped around in bold (also I'm assuming SSI should be situational switchin? Or are you using it differently here):
Abra
GSI: Grimer-Alola, Stunky, Munchlax
SSI: Vullaby, Diglett, Pawniard, Ferroseed
NSI: Spritzee, Carvanha, Pumpkaboo-Super, Aipom, Houndour

Carvanha
GSI: Timburr, Ferroseed, Magnemite, Croagunk
SSI: Staryu, Mienfoo, Vullaby, Chinchou, Foongus, Grimer-Alola, Snubbull, Cottonee, Spritzee, Croagunk, Mareanie
NSI: Snivy, Pawniard, Shellder, Corphish, Skrelp

Chinchou
GSI: Foongus, Ferroseed, Pumpkaboo-Super, Chinchou, Cottonee, Snivy, Munchlax
SSI: Timburr, Diglett, Onix, Croagunk, Spritzee, Drilbur, Snover, Trapinch
NSI: Mienfoo, Abra, Pawniard, Hippopotas, Scraggy

Corphish
GSI: Foongus, Chinchou, Croagunk, Cottonee, Ferroseed
SSI: Snivy, Magnemite, Snubbull, Skrelp, Mareanie
NSI: Staryu, Mienfoo, Shellder, Pumpkaboo-Super, Elekid

Cottonee
GSI: Foongus, Ponyta, Magnemite, Ferroseed, Spritzee, Croagunk, Grimer-Alola, Rufflet, Mareanie, Larvesta
SSI: Gastly, Doduo, Pumpkaboo-Super, Vulpix, Munchlax, Skrelp
NSI: Vullaby, Vulpix-Alola, Amaura

Diglett
GSI: None
SSI: None
NSI: Mienfoo, Staryu, Timburr, Vullaby, Foongus, Snivy, Gastly, Mudbray, Snubbull, Shellder, Carvanha, Pumpkaboo-Super, Cottonee, Ferroseed, Corphish, Slowpoke, Scraggy, Pumpkaboo-Small, Tirtouga

Doduo
GSI: None
SSI: Onix, Chinchou, Snubbull, Shellder, Magnemite, Archen, Omanyte, Tirtouga
NSI: Vullaby, Ponyta, Grimer-Alola, Pawniard, Corphish, Aipom, Mareanie, Skrelp, Elekid, Honedge, Hippopotas
I feel as though honedge should really be SSI, as it comes in on return/QA/Jump Kick/Non LO Brave Bird freely.

Dwebble
GSI: Mienfoo, Timburr, Staryu, Mudbray, Ferroseed, Shellder, Corphish, Drilbur, Tirtouga, Hippopotas, Mareanie
SSI: Foongus, Snubbull, Spritzee, Cottonee, Scraggy, Pumpkaboo-Super, Slowpoke
NSI: Pawniard, Grimer-Alola, Magnemite, Carvanha, Skrelp

Ferroseed
GSI: Timburr, Mienfoo, Ponyta, Croagunk, Mudbray, Scraggy, Vulpix, Larvesta
SSI: Vullaby, Pawniard, Pumpkaboo-Super, Magby, Torchic
NSI: Abra, Doduo, Rufflet, Aipom How is abra a check here, Ferroseed is an abra check and pretty much just wins unless is comes in on HP fight or is really weakened. Aipom is similar; Koff->Bullet seed defeats Aipom if ferroseed is healthy and even straight bullet seed ensures a double-ko

Foongus
GSI: Vullaby, Croagunk, Grimer-Alola, Ferroseed, Munchlax
SSI: Foongus, Pawniard, Magnemite, Gastly, Ponyta, Pumpkaboo-Super, Larvesta Foongus shouldn't be there, as even if both are at full it's still a 50-50
NSI: Abra, Doduo, Rufflet, Vulpix-Alola, Vulpix, Torchic, Amaura

Gastly
GSI: Grimer-Alola, Stunky, Munchlax
SSI: Vullaby, Ferroseed, Pawniard
NSI: Staryu, Mienfoo, Timburr, Abra, Carvanha, Croagunk, Scraggy, Aipom, Elekid, Houndour, Skrelp, Mareanie

Grimer-Alola
GSI: Mudbray, Onix, Hippopotas
SSI: Diglett, Croagunk, Pawniard, Mareanie, Drilbur
NSI: Dwebble, Skrelp

Magnemite
GSI: Chinchou, Hippopotas, Munchlax, Drilbur, Trapinch
SSI: Mienfoo, Timburr, Diglett, Foongus, Ferroseed, Mudbray, Onix, Pumpkaboo-Super
NSI: Ponyta, Croagunk, Torchic, Vulpix

Mareanie
GSI: Staryu, Diglett, Ferroseed, Chinchou, Shellder, Magnemite, Croagunk, Slowpoke
SSI: Abra, Mudbray, Onix, Pawniard, Trapinch, Munchlax
NSI: Vullaby, Elekid

Mienfoo
GSI: Croagunk, Snubbull, Spritzee, Skrelp, Mareanie, Trubbish
SSI: Vullaby, Foongus, Mudbray, Cottonee, Slowpoke, Larvesta
NSI: Timburr, Ponyta, Doduo, Abra, Rufflet, Archen, Hippopotas, Taillow

Mudbray
GSI: Staryu, Snivy, Pumpkaboo-Super, Pumpkaboo-Small, Slowpoke
SSI: Corphish, Foongus
NSI: Snubbull, Ferroseed, Shellder, Chinchou, Carvanha, Cottonee, Vulpix, Vulpix-Alola

Onix
GSI: Staryu, Timburr, Mienfoo, Foongus, Mudbray, Ferroseed, Pumpkaboo-Super, Cottonee, Drilbur, Slowpoke, Hippopotas
SSI: Snivy, Shellder, Corphish
NSI: Diglett, Abra, Carvanha, Tirtouga

Pawniard
GSI: Mienfoo, Timburr, Ponyta, Mudbray, Croagunk
SSI: Diglett, Scraggy, Hippopotas, Trubbish, Houndour, Larvesta
NSI: Staryu, Pawniard, Abra, Onix, Foongus, Ferroseed, Drilbur

Ponyta
GSI: Chinchou, Munchlax, Skrelp, Mareanie, Hippopotas, Slowpoke
SSI: Staryu, Mudbray, Shellder, Omanyte, Corphish, Tirtouga Mudray can come in because stamina even on a straight flare blitz unless it's sleeping, so it should probably be GSI
NSI: Timburr, Diglett, Carvanha, Archen, Scraggy

Pumpkaboo-Super
GSI: Vullaby, Ponyta, Grimer-Alola, Scraggy, Larvesta, Houndour, Vulpix, Torchic
SSI: Timburr, Pawniard, Rufflet
NSI: Foongus, Shellder, Croagunk, Carvanha, Gastly, Doduo

Shellder
GSI: Magnemite, Ferroseed
SSI: Timburr, Chinchou, Snubbull, Spritzee, Cottonee, Munchlax, Slowpoke
NSI: Mienfoo, Staryu, Pawniard, Snivy, Grimer-Alola, Skrelp, Scraggy, Elekid

Snivy
GSI: Vullaby, Foongus, Ponyta, Grimer-Alola, Larvesta
SSI: Gastly, Doduo, Ferroseed, Croagunk, Torchic, Snover
NSI: Staryu, Abra, Pawniard, Magnemite, Pumpkaboo-Super, Vulpix

Snubbull
GSI: Foongus, Larvesta
SSI: Gastly, Mudbray, Ponyta, Magnemite, Ferroseed, Spritzee, Pawniard, Skrelp
NSI: Staryu, Snivy, Abra, Grimer-Alola, Croagunk, Hippopotas

Spritzee
GSI: Foongus, Magnemite, Ponyta, Ferroseed, Gastly, Mareanie, Skrelp, Torchic
SSI: Pawniard, Croagunk, Grimer-Alola, Munchlax
NSI: Snivy, Mudbray

Staryu
GSI: Chinchou, Ferroseed, Munchlax
SSI: Foongus, Spritzee, Pumpkaboo-Super, Cottonee, Grimer-Alola, Mareanie
NSI: Timburr, Snivy, Magnemite, Skrelp, Scraggy, Elekid

Timburr
GSI: Foongus, Snubbull, Spritzee, Skrelp
SSI: Vullaby, Croagunk, Cottonee, Larvesta
NSI: Abra, Gastly, Mudbray, Doduo, Slowpoke, Ponyta, Rufflet, Hippopotas, Taillow, Trubbish

Vullaby
GSI: Onix, Chinchou, Shellder, Snubbull, Spritzee, Tirtouga 236+ SpA Vullaby Dark Pulse vs. 76 HP / 0 SpD Onix: 12-15 (57.1 - 71.4%) -- guaranteed 2HKO
SSI: Magnemite, Dwebble
NSI: Pawniard, Elekid, Vulpix-Alola, Amaura
Anyway, not much to say. This is really a useful reasource.
 
Stuff I think could stand to be swapped around in bold (also I'm assuming SSI should be situational switchin? Or are you using it differently here):
Abra
GSI: Grimer-Alola, Stunky, Munchlax
SSI: Vullaby, Diglett, Pawniard, Ferroseed
NSI: Spritzee, Carvanha, Pumpkaboo-Super, Aipom, Houndour

Carvanha
GSI: Timburr, Ferroseed, Magnemite, Croagunk
SSI: Staryu, Mienfoo, Vullaby, Chinchou, Foongus, Grimer-Alola, Snubbull, Cottonee, Spritzee, Croagunk, Mareanie
NSI: Snivy, Pawniard, Shellder, Corphish, Skrelp

Chinchou
GSI: Foongus, Ferroseed, Pumpkaboo-Super, Chinchou, Cottonee, Snivy, Munchlax
SSI: Timburr, Diglett, Onix, Croagunk, Spritzee, Drilbur, Snover, Trapinch
NSI: Mienfoo, Abra, Pawniard, Hippopotas, Scraggy

Corphish
GSI: Foongus, Chinchou, Croagunk, Cottonee, Ferroseed
SSI: Snivy, Magnemite, Snubbull, Skrelp, Mareanie
NSI: Staryu, Mienfoo, Shellder, Pumpkaboo-Super, Elekid

Cottonee
GSI: Foongus, Ponyta, Magnemite, Ferroseed, Spritzee, Croagunk, Grimer-Alola, Rufflet, Mareanie, Larvesta
SSI: Gastly, Doduo, Pumpkaboo-Super, Vulpix, Munchlax, Skrelp
NSI: Vullaby, Vulpix-Alola, Amaura

Diglett
GSI: None
SSI: None
NSI: Mienfoo, Staryu, Timburr, Vullaby, Foongus, Snivy, Gastly, Mudbray, Snubbull, Shellder, Carvanha, Pumpkaboo-Super, Cottonee, Ferroseed, Corphish, Slowpoke, Scraggy, Pumpkaboo-Small, Tirtouga

Doduo
GSI: None
SSI: Onix, Chinchou, Snubbull, Shellder, Magnemite, Archen, Omanyte, Tirtouga
NSI: Vullaby, Ponyta, Grimer-Alola, Pawniard, Corphish, Aipom, Mareanie, Skrelp, Elekid, Honedge, Hippopotas
I feel as though honedge should really be SSI, as it comes in on return/QA/Jump Kick/Non LO Brave Bird freely.

Dwebble
GSI: Mienfoo, Timburr, Staryu, Mudbray, Ferroseed, Shellder, Corphish, Drilbur, Tirtouga, Hippopotas, Mareanie
SSI: Foongus, Snubbull, Spritzee, Cottonee, Scraggy, Pumpkaboo-Super, Slowpoke
NSI: Pawniard, Grimer-Alola, Magnemite, Carvanha, Skrelp

Ferroseed
GSI: Timburr, Mienfoo, Ponyta, Croagunk, Mudbray, Scraggy, Vulpix, Larvesta
SSI: Vullaby, Pawniard, Pumpkaboo-Super, Magby, Torchic
NSI: Abra, Doduo, Rufflet, Aipom How is abra a check here, Ferroseed is an abra check and pretty much just wins unless is comes in on HP fight or is really weakened. Aipom is similar; Koff->Bullet seed defeats Aipom if ferroseed is healthy and even straight bullet seed ensures a double-ko

Foongus
GSI: Vullaby, Croagunk, Grimer-Alola, Ferroseed, Munchlax
SSI: Foongus, Pawniard, Magnemite, Gastly, Ponyta, Pumpkaboo-Super, Larvesta Foongus shouldn't be there, as even if both are at full it's still a 50-50
NSI: Abra, Doduo, Rufflet, Vulpix-Alola, Vulpix, Torchic, Amaura

Gastly
GSI: Grimer-Alola, Stunky, Munchlax
SSI: Vullaby, Ferroseed, Pawniard
NSI: Staryu, Mienfoo, Timburr, Abra, Carvanha, Croagunk, Scraggy, Aipom, Elekid, Houndour, Skrelp, Mareanie

Grimer-Alola
GSI: Mudbray, Onix, Hippopotas
SSI: Diglett, Croagunk, Pawniard, Mareanie, Drilbur
NSI: Dwebble, Skrelp

Magnemite
GSI: Chinchou, Hippopotas, Munchlax, Drilbur, Trapinch
SSI: Mienfoo, Timburr, Diglett, Foongus, Ferroseed, Mudbray, Onix, Pumpkaboo-Super
NSI: Ponyta, Croagunk, Torchic, Vulpix

Mareanie
GSI: Staryu, Diglett, Ferroseed, Chinchou, Shellder, Magnemite, Croagunk, Slowpoke
SSI: Abra, Mudbray, Onix, Pawniard, Trapinch, Munchlax
NSI: Vullaby, Elekid

Mienfoo
GSI: Croagunk, Snubbull, Spritzee, Skrelp, Mareanie, Trubbish
SSI: Vullaby, Foongus, Mudbray, Cottonee, Slowpoke, Larvesta
NSI: Timburr, Ponyta, Doduo, Abra, Rufflet, Archen, Hippopotas, Taillow

Mudbray
GSI: Staryu, Snivy, Pumpkaboo-Super, Pumpkaboo-Small, Slowpoke
SSI: Corphish, Foongus
NSI: Snubbull, Ferroseed, Shellder, Chinchou, Carvanha, Cottonee, Vulpix, Vulpix-Alola

Onix
GSI: Staryu, Timburr, Mienfoo, Foongus, Mudbray, Ferroseed, Pumpkaboo-Super, Cottonee, Drilbur, Slowpoke, Hippopotas
SSI: Snivy, Shellder, Corphish
NSI: Diglett, Abra, Carvanha, Tirtouga

Pawniard
GSI: Mienfoo, Timburr, Ponyta, Mudbray, Croagunk
SSI: Diglett, Scraggy, Hippopotas, Trubbish, Houndour, Larvesta
NSI: Staryu, Pawniard, Abra, Onix, Foongus, Ferroseed, Drilbur

Ponyta
GSI: Chinchou, Munchlax, Skrelp, Mareanie, Hippopotas, Slowpoke
SSI: Staryu, Mudbray, Shellder, Omanyte, Corphish, Tirtouga Mudray can come in because stamina even on a straight flare blitz unless it's sleeping, so it should probably be GSI
NSI: Timburr, Diglett, Carvanha, Archen, Scraggy

Pumpkaboo-Super
GSI: Vullaby, Ponyta, Grimer-Alola, Scraggy, Larvesta, Houndour, Vulpix, Torchic
SSI: Timburr, Pawniard, Rufflet
NSI: Foongus, Shellder, Croagunk, Carvanha, Gastly, Doduo

Shellder
GSI: Magnemite, Ferroseed
SSI: Timburr, Chinchou, Snubbull, Spritzee, Cottonee, Munchlax, Slowpoke
NSI: Mienfoo, Staryu, Pawniard, Snivy, Grimer-Alola, Skrelp, Scraggy, Elekid

Snivy
GSI: Vullaby, Foongus, Ponyta, Grimer-Alola, Larvesta
SSI: Gastly, Doduo, Ferroseed, Croagunk, Torchic, Snover
NSI: Staryu, Abra, Pawniard, Magnemite, Pumpkaboo-Super, Vulpix

Snubbull
GSI: Foongus, Larvesta
SSI: Gastly, Mudbray, Ponyta, Magnemite, Ferroseed, Spritzee, Pawniard, Skrelp
NSI: Staryu, Snivy, Abra, Grimer-Alola, Croagunk, Hippopotas

Spritzee
GSI: Foongus, Magnemite, Ponyta, Ferroseed, Gastly, Mareanie, Skrelp, Torchic
SSI: Pawniard, Croagunk, Grimer-Alola, Munchlax
NSI: Snivy, Mudbray

Staryu
GSI: Chinchou, Ferroseed, Munchlax
SSI: Foongus, Spritzee, Pumpkaboo-Super, Cottonee, Grimer-Alola, Mareanie
NSI: Timburr, Snivy, Magnemite, Skrelp, Scraggy, Elekid

Timburr
GSI: Foongus, Snubbull, Spritzee, Skrelp
SSI: Vullaby, Croagunk, Cottonee, Larvesta
NSI: Abra, Gastly, Mudbray, Doduo, Slowpoke, Ponyta, Rufflet, Hippopotas, Taillow, Trubbish

Vullaby
GSI: Onix, Chinchou, Shellder, Snubbull, Spritzee, Tirtouga 236+ SpA Vullaby Dark Pulse vs. 76 HP / 0 SpD Onix: 12-15 (57.1 - 71.4%) -- guaranteed 2HKO
SSI: Magnemite, Dwebble
NSI: Pawniard, Elekid, Vulpix-Alola, Amaura
Anyway, not much to say. This is really a useful reasource.
Honedge loses to Doduo's Knock Off
Aipom and Abra both have access to rare but notable Fire coverage they can use to specifically get around Ferroseed
Foongus can switch in on anything not called Sludge Bomb 100% of the time and can switch in on Sludge Bomb most of the time
Mudbray loses to special variants of Ponyta, including Grassium Z, Sunny Day, or just plain old Fire Blast / HP Grass variants
Onix can directly switch into, outspeed, and KO Nasty Plot Vullaby with Rock Blast due to Defense drops from Weak Armor, and it is the most solid Vullaby check available in this metagame
 
Honedge loses to Doduo's Knock Off
Aipom and Abra both have access to rare but notable Fire coverage they can use to specifically get around Ferroseed
Foongus can switch in on anything not called Sludge Bomb 100% of the time and can switch in on Sludge Bomb most of the time
Onix can directly switch into, outspeed, and KO Nasty Plot Vullaby with Rock Blast due to Defense drops from Weak Armor, and it is the most solid Vullaby check available in this metagame
"SSI, or Safe Switch-Ins, can switch into and beat the threat situationally. They may need to switch in on a specific move, or require that the threat not be running a somewhat commonly seen coverage move."
Honedge does that quite well, as it comes in on 3/5 of doduo's moves and does just as well as if it had come it on a free switch. Since honedge is considered a check and can use over half of Doduo's moves as a safe switch in, it should really be in SSI or neither.

240 SpA Life Orb Abra Hidden Power Fire vs. 84 HP / 228 SpD Eviolite Ferroseed: 21-26 (95.4 - 118.1%) -- 6.3% chance to OHKO while Ferroseed ohkoes in return; Sash doesn't do any better because of bullet seed. I could sorta accept this because of chip if this was a standard abra set, but as something so niche as to not even be oo or have any real usage I can't really support that at all. I completely forgot about fire punch aipom though, sorry about that.

How so? Coming in on even Giga Drain or spore at best gives you a 50-50, and if you switch out to a counter before the final speed tie you didn't even need Foongus to check it.

I'd been assuming it already had a weak armor boost because it got brought in on an attack, but even then berry juice means you'd need to nasty plot and sturdy messes that up up, so yeah, that's very fair.
 
H*ck yeah my dude! Love you!

E: Are you sure Timburr should be a GSI to Carvanha? I thought it ran Psychic Fangs now.

E2: I am certifying this thread as the Official LC Checks Compendium (Marvelous Edition).

(infamous stamp of certification)
 
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WA Evio Onix and Shellder are a guaranteed switchin to Doduo

Shellder is 2HKO'd by Brave Bird, and I guess WA Evio Onix can switch-in, but that's not the first Onix set I'd ever recommend to someone since it lacks the power of other Weak Armor sweepers, and also lacks the utility of WA users such as Omanyte and Dwebble.
 
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