Some time after playing Aerodactyl with Tailwind in Multis, I got the idea to pair up Mega Pidgeot with Hitmonlee and Sylveon, with a Tailwind option to support mainly Sylveon, but also Hitmonlee and the rest of the team. For the fourth Pokémon, I added Scizor for some stock glue and went to play.
I wasn't thinking too much while doing that, and ended up using a Hitmonlee with Knock Off and Mach Punch, alongside a Timid Mega Pidgeot with Hurricane/Heat Wave/Tailwind/Protect. After breeding the team and playing it for 50 battles, I realized that Mega Salamence would outclass Mega Pidgeot as a Tailwind setter with its better bulk, offense, Intimidate, and typing - but I continued to play Mega Pidgeot because I'd wanted to use it. The team worked out a lot better than I expected from something with Mega Pidgeot on it, and ended up getting 290 wins with a lot of luck along the way.
After the streak ended, I scrapped Mega Pidgeot and brought in a Timid Mega Salamence with Tailwind and switched to a different Hitmonlee with Sucker Punch/Knock Off. The 290-win streak with Pidgeot seemed like a lucky break - I expected Mega Salamence and a proper Hitmonlee to do better than Pidgeot, but it exceeded my expectations and ended up putting together a decent win streak.
For Mega Salamence, I picked a special set as it was also going to serve as a Tailwind setter which left no room for Dragon Dance, and Earthquake would not be viable with Hitmonlee and Sylveon both being highly vulnerable to it. Same as physical Mega Salamence, I went for 4HP/4Def/4SDef at the cost of one point of Speed to survive CH Stone Edge from Darmanitan4 while losing out on a couple of speed ties. Even though this team uses Tailwind frequently, I also wanted to be able to attack on Turn 1, so a Timid nature was needed to outspeed Starmie, Froslass and others without Tailwind. I considered HP Ground over Flamethrower, but with Mega Salamence's low Special Attack stat it fails to OHKO Heatran, and seems too weak to be worth it.
Hitmonlee is lifted straight from Peterko's Frontier and Subway teams, where he used it to great effect. Hitmonlee is still a very viable Pokémon - among Fake Out leads, it has the highest damage output with Close Combat, the hardest-hitting priority move in Sucker Punch, and immunity to Paralysis with Limber which gives it a much better match-up against Roller Skaters than most of its peers. On the flip side, its Speed is underwhelming and while Sucker Punch is effective, it can fall behind badly when Close Combat is needed. It also does poorly against Flying-types - especially Zapdos, Thundurus, Tornadus, and Landorus among Veteran threats, and Dragon/Flying-types. Fairies are also bad news for it, but the Maison's Fairy selection is pretty underwhelming so that's less of a problem. Hitmonlee got new toy in the 6th generation with a powerful Knock Off, which has more utility than Mach Punch in general and helps this team against Chandelure and Trick Room setters. With Close Combat to destroy the Rock- and Steel-types that resist Hyper Voice, Hitmonlee fits this team nicely, and Tailwind also solves its Speed problem. Hitmonlee also has the option to run Unburden, but it cannot be combined with Sucker Punch, is unreliable, and Limber is a very good ability that protects it from Static and Thunder Wave. Regarding the AI's behaviour against Limber, the AI doesn't seem to recognize it right away as it sometimes uses Thunder Wave on Hitmonlee, which is always welcome.
Sylveon uses Specs Hyper Voice, preferably under Tailwind. Swift has perfect accuracy, which has been useful against Zapdos2 and avoiding Snow Cloak/Sand Veil risk. Shadow Ball hits Chandelure, which the team is weak to if Hitmonlee has gone down. Psyshock hits Poison-types. HP Ground could be an option over Psyshock to hit Heatran and Steel-types better - but it would miss KOs on Poison-types. With Tailwind support, Sylveon hits 222 Speed, outspeeding most of the Maison. Cutting Speed by one point is irrelevant when under Tailwind, but outside Tailwind it makes Sylveon lose out on speed tying Beartic4, Regirock4 and Registeel2 and makes it tie Clawitzer4. This was never a problem during the streak, but it could make a difference. With Pixilate Hyper Voice and Fairy-typing, Sylveon destroys the Dragon-types that give the leads trouble with MegaMence not being able to run Dragon Pulse and generally nukes the field. It can also function without Tailwind in a pinch, with priority from Scizor picking off weakened targets and its good Special bulk, but it benefits a lot from the Speed advantage.
Scizor is a standard gluemon to cover Salamence and Sylveon. Since the team has massive problems with Heatran if Hitmonlee is down, I wanted to outspeed it and increased its Speed to 101 to accomplish it and invested a couple more points to outspeed many others and avoid ties. Under Tailwind, it also gives Scizor 202 Speed, which is a nice Speed tier. In hindsight, there could be value in going to 103 Speed to outspeed Milotic - this would give Scizor 159 HP to minimize Life Orb recoil. Going up to 106 to outspeed Suicune, and Heatran4/Charizard3/Electrode under Tailwind could also be an option.
Generally, battles open with Hitmonlee using Fake Out while Mega Salamence uses either Hyper Voice to go for a double KO on Turn 2, or uses Tailwind to gain the Speed advantage against faster opposition. Attacking right away, using Protect, or switching are also options. If Mega Salamence is going to get KO'd, it can set up Tailwind on its last move to make way for Sylveon to sweep.
With two Pokémon that are completely reliant on spread moves, Wide Guard is a large threat to the team. Howewer, Mienshao4 has never used it against this team and Bastiodon4 is easily knocked out - Regigigas4 is a large threat and the team doesn't have a whole lot going against it. I met Regigigas4 using Wide Guard once during the streak, and had to rely on luck for it to not use Wide Guard too much, which worked out that time. Other large threats include:
- Heatran, which walls MegaMence and Sylveon
- Chandelure, as only Hitmonlee Knock Off is very effective against it and it resists Sylveon Hyper Voice and KOs Scizor
- Freezes from Ice moves - Salamence has to switch out against many leads, and is especially vulnerable to Blizzard from the likes of Suicune and Glaceon
- Fast Taunt - especially Crobat4, which is unpredictable and can Taunt Salamence to prevent Tailwind from going up, which is bad as lead Crobat on a Roller Skater team would otherwise be a prime situation for Tailwind.
- Altaria4 - Salamence and Hitmonlee both match up badly against it, and will use Sing most of the time, putting a Pokémon to sleep if it hits. While it doesn't deal much damage on its own, having Pokémon put to sleep really impedes Tailwind antics and can cause a lot of trouble.
- Drifblim3 - a Roller Skater-exclusive set with Icy Wind. Drifblim4 is outsped by Hitmonlee and can be reliably taken down with Hyper Voice + Knock Off, but if you try to do that against Drifblim3 which outspeeds Hitmonlee you get smacked hard by Icy Wind. To make things worse, targeting Sucker Punch on Drifblim is not reliable as it may also be Set4 and use Hypnosis instead.
- Faster Fake Out users - Weavile4 uses Ice Punch most of the time, and is generally shut down with Fake Out from Hitmonlee. Infernape4 may use either Fake Out or an attacking move. Jynx4 uses Blizzard and gets KO'd by Sucker Punch. Kangaskhan4 likely uses Fake Out.
- Talonflame4 - with a resistance to Sylveon's Hyper Voice, priority Brave Bird, Sitrus Berry, and Swords Dance, and possibly Flame Body, it can be a pest. Its Gale Wings Brave Bird also outspeeds Hitmonlee's Sucker Punch, and nothing really wants to switch into it.
- Rhyperior4 - with Solid Rock, it isn't hit hard by Close Combat and often gets off several attacks. It also uses Protect randomly, which can make targeting it in the first place backfire.
- Donphan4, Muk4 - hard-hitting physical attackers with Quick Claw can destroy Sylveon regardless of whether Tailwind is up when their item activates, and thanks to Choice Specs, Protect is not an option. There's not much that can be done about it, other than hoping that Quick Claw will not activate.
- Sand Stream/Snow Warning - with extremely low Defense, Hitmonlee is a lot more dependent on its Focus Sash than something like Greninja. Weather abilities make Hitmonlee die very fast.
- Volcarona4 - Mega Salamence can 2HKO it with Hyper Voice, but if Salamence is down when it comes out it's going to destroy the whole team. I never encountered Volcarona while Salamence was down during this streak, fortunately.
- Metagross4 - it threatens Sylveon and is difficult to kill with its bulk.
- Charizard4 - with Assault Vest and a Fairy resistance, it doesn't mind spread attacks from Salamence and Sylveon while threatening Salamence with Dragon Pulse and the rest of the team with Heat Wave.
- Trick Room - Mega Salamence's Hyper Voice is suitable for grabbing 2HKOs with support, but its Turn 1 firepower is pretty lacking. Fake Out helps, but against Bronzong, Aromatisse and Slowbro, it's very difficult to stop the dimensions from twisting. While under Trick Room, Scizor and Sylveon can serve well and Hitmonlee has Sucker Punch, but it's not a great situation to be in, especially if something like Chandelure4 shows up during it.