
The problem with Swords Dance Mew
If you glance at my ALTPL/UWL teamdump you'll see that with Mewtwo, I experimented with a ton of different sets: Barrier, Twave, Amnesia, Explosion, and so on. However with Mew I stuck with the traditional Swords Dance set (I think?) every game, and I felt like it was less useful as the weeks went on. The problem with Swords Dance Mew, compared to older RBY Ubers metas, is that now Mew and Mewtwo are running around spamming Thunder Wave more often than ever. This means it's much harder now for Mew to set up Swords Dance and remain unparalyzed, which heavily hinders its sweeping potential.
I noticed this problem especially with Swords Dance + Thunder Wave + Earthquake + Soft-Boiled Mew. I used to believe that this set was the best Mew set in RBY Ubers, and you could run it alongside Cloydon essentially for free, since Cloyster and Rhydon checked the birds. In a world where Mewtwo still spams Amnesia + 2 Attacks + Recover, you could bring this Mew set in on Mewtwo, paralyze it, then spam soft-boiled until it FPs then get a free boost. Now that you have a boosted unparalyzed Mew staring down a paralyzed Mewtwo, this often forces your opponent out, and if you are in a good enough position you could force progress or even sweep outright. If you try doing this in 2025, Mew and Mewtwo will trade Paralysis, and now your Mew becomes a much less effective progress maker sweeper.
Support Mew
So I genuinely thought this was an original idea and was talking to
Ctown6 about it then he linked me to
this post where he talked about the same exact mew set THREE YEARS AGO. My idea behind support Mew is that Swords Dance does not let you fit Thunder Wave, Soft-Boiled, and Explosion on the same set. You generally have to give up one, or sometimes two, of these good moves to make room for Swords Dance and your attacking moves. Because of this, I figured why not scrap Swords Dance and run these three + an attacking move (mainly used Psychic). I have described this set to people as an "exploding Chansey". The mon is played like Chansey, generally eats and spreads para, not a great damage output, and sticks around through good bulk + instant reovery. However Chansey is pretty flawed in Ubers largely due to how passive it is and how it allowes Mew/Mewtwo to setup for free. This is where boom is useful, if you need to bail out of Mew/Mewtwo setting up on you, you can explode to gain momentum.
This set fits best on teams that do well in the physical department and appreciate Mew's purpose as more of a defensive backbone than a physical sweeper. Double Normal (Bull + Lax) teams stand out in particular for me. You have enough physical firepower with the Normals so SD Mew alongside them seems like overkill. Running support Mew and playing it more defensively gives you a mon to fall back on and threaten paralysis against special attackers, such as Psychic-types, Zapdos, or Cloyster. You're not bulletproof, of course, but you definitely appreciate the defensive utility. An example of a team Support Mew would NOT be good on is some kind of Mie + Zam team. You have enough twavers and special tanks and would greatly appreciate SD Mew's offensive potential more. My general rule was "the more physical a team is, the less physical Mew's set should be"