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Zoroark @ Air Balloon
Ability: Illusion
Tera Type: Dark
EVs: 180 SpA / 76 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Nasty Plot
- Dark Pulse
- Flamethrower
- Focus Blast
Let's get straight into it. When the enemy Hisuian Zoroark sees a Unovan Zoroark on your team, they will immediately be wary. You could argue that this makes it impossible to work as a lure. Especially since I'm technically recommending two pokemon, but I'll go into that part later.
The idea is straightforward. Zoroark is holding an Air Balloon. When it comes out, disguised as Pawmot, it would be a natural response for the opponent to assume that this is the real Pawmot, because Air Balloon is an item Pawmot can run, but Zoroark doesn't.
Combining this with the fact that "Pawmot" has very spammable Close Combats, H-Zoroark can come in safely and proceed to outspeed and OHKO with Shadow Ball.
252 SpA Choice Specs Zoroark-Hisui Shadow Ball vs. 0 HP / 4 SpD Pawmot: 286-337 (101.7 - 119.9%) -- guaranteed OHKO
Or so it would think. It then proceeds to do only 55%ish to Zoroark, which can OHKO back with a Dark Pulse of its own.
Now then, there are a few other things I'd like to bring up.
Firstly, what happens if the enemy Zoroark has terastalised? Well, that's what Focus Blast is there for, to one shot the Tera Normal enemy, That said, it would be rational to assume that the ghost type opponent would not shed that typing against a fighting type unless they knew for a fact that they were up against Zoroark. Even if they do Terastalise, and you mispredict and press Dark Pulse, H-Zoroark can no longer check the real Pawmot, and can be picked off by a Mach Punch at any time.
Secondly, what happens if the enemy Zoroark presses flamethrower instead of shadow ball? Maybe it wants to choose a safe middle-ground that hits both Pawmot and Zoroark hard. Well, luckily, this Zoroark has been EVd to survive a specs Hisuian Zoroark Flamethrower after rocks.
252 SpA Choice Specs Zoroark-Hisui Flamethrower vs. 0 HP / 76 SpD Zoroark: 192-227 (73.5 - 86.9%) -- guaranteed 2HKO after Stealth Rock
But this brings us to our third point. Pawmot. Why should I be forced to run a Pawmot on my team, on top of the already niche Unovan Zoroark? Well, as you can imagine, Pawmot's role here is not exactly hyper-difficult to fill. I've chosen Pawmot as an example due to its Fighting STAB being ineffective against H-Zoroark, along with the low special defence allowing it to be OHKOd by a specs Shadow Ball. Not to mention that revival blessing, though a flawed move in many ways, is a valuable asset to have on a team.
If you truly cannot bring yourself to use Pawmot, then any pokemon that is weak to ground type moves, but vulnerable to Hisuian Zoroark, will fill this role just as well. Some popular examples might be the common Gholdengo or Glimmora, the former of which can feign being Zoroark with its own Nasty Plots, while the latter is the best hazard-setter in the game.
The most optimal replacement for Pawmot is actually Iron Thorns, which may come as a surprise. Being 4x weak to ground justifies the Air Balloon heavily, and the neutrality to Stealth Rocks also helps keep up the facade. Glimmora shares these traits, but Iron Thorns has an extra vulnerability that can ensure that a Hisuian Zoroark feels safe against it. That being its heavy weakness to grass knot.
252 SpA Choice Specs Zoroark-Hisui Grass Knot (120 BP) vs. 0 HP / 4 SpD Iron Thorns: 440-518 (129 - 151.9%) -- guaranteed OHKO
Being a paradox pokemon, its appearence in OU wouldn't be excessively suspicious.
TLDR:
Zoroark, under normal circumstances, will always beat its Hisuian counterpart 1v1. Therefore, all it needs to do is convince the opponent that it isn't actually Zoroark. (This is inspired off Pokeaim's video like a year or so ago where he used Telepathy Tapu Koko to pretend he was Zoroark. See this as a reversed situation)