I have returned, and due to most of the good mons being taken, I shall propose what can certainly be called "an idea".
And I have complete faith in it. And will stand by what I say completely.
So better step that "14 viable hard counters" up to 15, because...
BEHOLD
A COUNTER

Farigiraf @ Choice Scarf
Ability: Armor Tail
Tera Type: Fairy
EVs: 112 HP / 252 SpA / 144 Spe
Rash Nature
- Psyshock
- Hyper Voice
- Low Kick
- Trick
(created by yours truly)
Now, please. Let me cook. You may look at this set, this mon, and say that this is completely horrible, that it's not even defensively good against Slither Wing, but please understand. Moltres's and Fezendipitis are fine and all, but there's more than one way to stomp a bug.
First up: with 144 speed EVs and a Choice Scarf Farigaraf outspeeds 252 Jolly Slither Wing by a single point (288 on Farig's end, and 287 on Slither Wing's end), and Psyshock lets you guaranteed OHKO Slither Wing, particularly this non-bulky set that we're building against. Tera Fairy allows you to survive if you think that they will Tera Bug, allowing you to survive either a U-Turn or CC, with Psyshock still being an 2HKO vs. Slither. Armor Tail allows you to switch in perfectly and always deny First Impression, and since no sane person will suspect a Choice Scarf Farigiraf, they'll most likely stay in to click U-Turn, allowing you to pull your very own mid-ladder Greninja and ruin their day. Hyper Voice is just there to be a STAB option that you can click against anything that ain't a Slither Wing.
It also doesn't care about Will-o-Wisp, but the chip damage does suck, as you'll find out later.
Low Kick here is the oddball, but it's there to ensure you can at least do something to Bisharp, with the added bonus that you'll outspeed all Bisharp variants, and are immune to Sucker Punch thanks to Armor Tail. It's a guarenteed 2HKO vs. non-bulky Bisharps, being a 49.5% to 2HKO at 172 HP EVs, and being a near 3HKO vs. 252 HP Bisharps. Stealth Rock improves your odds to a 93% chance to 2HKO a Bisharp with 172 HP EVs, and a 49.6% chance to 2HKO with Stealth Rocks.
It's funny to mention that, with no rocks damage on your Farigiraf, they have a 50% chance to OHKO from full w/ Throat Chop, so with rocks damage it's a roughly 46.5% chance that you'll defeat the Bisharp(win the 50% roll to survive the Throat Chop, and get the 93% chance to 2HKO, and since you outspeed you'll win) and 25% chance to win w/ no rocks damage on their Bisharp.
So TLDR, set rocks, and you have a coinflip's chance to beat a bisharp with this set :3
Trick is there simply to help Farigiraf be a bit of a wallbreaker, and disrupt Chanseys and such that wanna switch in.
Also remember that Farigiraf has some decent HP investment, so it's quite bulky, even with the Rash nature, so it "can" switch in to some moves and do some things against non-Slithers.
And due to Armor Tail, you also have insurance vs. a Slither Wing endgame, and can prevent yourself from being First Impressioned to death too (just make sure to Tera Fairy to avoid being U-Turn fodder) Although you can tank *1* U-Turn due to it only maxing out at 91% damage, so you aren't completely dead vs. a predicted U-Turn from Slither Wing.
To sum up:
- Outspeeds and OHKO's Slither Wing and 2HKO's Tera Bug Slither Wing
- Immunity to First Impression
- Tera Fairy allows you to resist both Bug and Fighting STABS from Slither
- You aren't complete Bisharp food
- You have the surprise factor of the goddamn century and will leave your opponent very confused, very angry, and most likely tilted because unfortunate didn't even begin to describe their situation, and they got outplayed by Choice Scarf Farigiraf.
To use in teams:
- Strong Hazard Control and Removal is key
- Pairs well with Pokemon that benefit from not having to deal with Slither Wing (Krook comes to mind) and can kill Bisharp (Low Kick is a tech, not a guarantee.)
- Fits best onto Bulky Offense and Balance Teams
- Fits the role of "niche tech" and requires HEAVY team support
- Nah but actually it's a decently fast bulky attacker, so do what you will with those words
- Used best on alts so people don't know it's you using Choice Scarf Farigiraf, and you don't need to sacrifice your main acc's elo
- Realistically, it's really more "Team Support", as it's not the star of the show, but it's really there to patch up your teams's holes, and be something that can deal semi-consistent damage and support your team with said damage.
Once again, I am confident this can be called a Counter. It ain't just checkin' Slither switching in and annoying it or whatever, it's denying it's main button and slapping it three ways from sunday.
REPLAY ZONE:
I gotta make a team with this thing...
no guarantees that this even gets filled out, but trust me, the theory is solid.
(I'm also like going on another vacation to visit family so by the time I'm back the votin' period probably already be over)