I think Smeargle should get Healing Wish instead of Lunar Dance. Smeargle tends to use itself up early in the game, at which point the PP restoration is mostly unhelpful. In fact, it’s more often detrimental because Healing Wish and Lunar Dance get stored for the next switch-in that can use them, so Lunar Dance can often get used up restoring only PP on an otherwise healthy Pokémon. Just about the only real upside to Lunar Dance in my opinion is the interaction with Oricorio which is quite rare and not even that much of a plus since your opponent does get a full heal for another team member out of the deal.
Also, how come Enamorus doesn’t have a Contrary Stellar Tera Blast set? It’s easily the strongest Contrary user available, and is currently tearing up OU with that combination. I heard that there was a reason that went something like “it already has fairy ground coverage which is good enough” but Enamorus already has a Contrary Tera Blast set without ground coverage. Flipping that Tera type from Flying to Stellar seems like a no brainer. You might even add Moonblast as a roll over Play Rough since Stellar Tera Blast boosts SpA too.
Finally, we were joking around in the PS chat about how Luvdisc gets Endeavor now in DLC2 and could potentially engage in Sash Endeavor Aqua jet Luvdisc (SEAL) strats, and honestly? Luvdisc is so bad that I think something like that is worth a try. There are two ways this could be approached. One is a level 100 set with Endeavor, Endure, and two of Flip Turn, Aqua Jet, and Whirlpool; the Flip Turn sets would naturally get Heavy Duty Boots when they aren’t in the lead slot, and the Jet/Whirlpool version could get, uh, Wide Lens or Liechi Berry or something, I dunno. The second way is a genuine level 1 set with Sash, Endeavor, Aqua Jet, and two moves from Icy Wind, Whirlpool, Charm, and Flip Turn. Both sets would naturally have minimized bulk IVs and EVs (when they’re Sashed, anyway).
I know FEAR-like sets have been rejected in the past with the argument that their fixed level makes them impossible to balance, but Luvdisc is already impossible to balance for the very same reason. I also know it sounds gimmicky and unreliable, but Luvdisc has set an incredibly low bar thus far with win rates consistently hovering just above 40% since it hit level 100. An Endeavor set doesn’t have to bring it up to 50% WR to be worth adding; it just has to raise it at all. With that in mind, even the threat of level 100 Endure Endeavor Luvdisc being able to severely damage or even outright 1v1 various Choice and AV users that can’t outspeed or outprioritize it will naturally make the non Endeavor set do a little better through fear factor (SEAL factor?) alone.
Seriously, we need to explore the depths of Luvdisc’s potential, and not just its depths, but its underdepths as well. To that end, I do have one more idea: a Mirror Herb set with Tera Blast, Hydro Pump/Surf, Waterfall/Liquidation and Ice Beam. Its Tera Type would have to be either Grass or Electric—probably best to start with a roll between the two. Hell, you could even throw Stellar in there as it could maximize Luvdisc’s chance at at least one strong, clean hit. The idea with Tera Blast and double Water coverage is to be able to take advantage of any offensive boosts whether they’re physical or special. Waterfall is viable over Liquidation here, I think, as Luvdisc’s naturally high speed should give it plenty of opportunities to score flinches (and it will really appreciate free turns), especially with Mirror Herb helping ensure it doesn’t get outsped by Dragon Dance and the like. Sure, Luvdisc can’t OHKO Salamence with Ice Beam unless it has a Stellar boost, but Mirror Herb would at least give it an extra chance to try. The obvious offensively-natured intent of this set means Hydro Pump would be worthwhile over Surf, but revealing that your Luvdisc is Mirror Herb the moment you click any Water STAB isn’t ideal.
Both the Endeavor and Mirror Herb sets have the potential to turn Luvdisc from a very fast but otherwise passive generic Water type into an effective emergency blanket check against a wide swath of the meta’s most game-ending threats, which is often what players try to use it for anyway, since it’s not good for much else. I don’t think either of them will be enough to bring Luvdisc to 50%, but if Luvdisc’s sets are always going to be bad no matter what, you might as well try giving it sets that are good at being bad.
P.S.
If any of that sounds like it would need too much hard-coding, I’d just like to say that Luvdisc of all Pokémon deserves some extra effort to make it work and that each of those options would still be less intrusive to the spirit of randbats than that stat-boost-on-switch-in idea that almost went through.