How was I saying that? I mean its a good idea not to send something to face Gengar that is Normalize fodder or something that gets OHKOed, yeah. And Dusk-Mane, Metagross, and Gardevoir can all be OHKOed.
I only responded to the Gengar bit because it seemed random for you to bring up. AKA, what relevance does a slower weak to Ghost have regarding Gengar? Of course there is no need to rub in the fact it won’t do well, I would never bring in Gardevoir vs Gengar, although it may lure it in if they switch to it as I Shell Smash. But depending on how “obvious” it will have Simple, is to the Gengar user they will likely not put themselves in that position.
Anyway, I wasn't saying your set was worthless or anything but it will always be predictable regardless of the pre-Mega ability because no one runs base form Gardevoir. It will eventually evolve and will still be pretty easily walled by Steels and extremely prone to priority attacks.
You did say “Basically, Mega Gardevoir is better off running either of the sets SL42 mentioned and the Mega evolving set
really has no niche.” No niche means no reason to use this set over anything else, which means it’s not useful... AKA useless.
Walked by Steels? Isn’t the whole point of Shell Smash on Simple to break past resists? Spore can handle Haze sets, while non-Haze sets get 1HKOed.
If you don’t use Spore and use Moongeist, then Assault Vest Solgaleo, Dusk-Mane, as well as Aegislash get 1HKOed:
+4 252+ SpA Gardevoir-Mega Moongeist Beam vs. 252 HP / 252+ SpD Assault Vest Solgaleo: 444-524 (92.8 - 109.6%) -- guaranteed OHKO after 1 layer of Spikes
+4 252+ SpA Pixilate Gardevoir-Mega Boomburst vs. 252 HP / 252+ SpD Assault Vest Dialga: 517-610 (127.9 - 150.9%) -- guaranteed OHKO
+4 252+ SpA Gardevoir-Mega Stored Power (260 BP) vs. 252 HP / 252+ SpD Registeel: 450-529 (123.6 - 145.3%) -- guaranteed OHKO
Steel will yield.
Also, the Stored Power variant is very reliant on boosts to break things like Soundproof, Regenvest Kyogre, and Fur Coat Chansey. Prankster Topsy Turvy is also a thing and Boomburst won’t OHKO anything at -4 without a crit.
I am not sure what you are saying here. Power Trip sets also rely on boosts, in fact, the reality of a set up Sweeper using boosts to sweep is kind of the point. Boomburst does pretty well, however, without any boosts:
252+ SpA Pixilate Gardevoir-Mega Boomburst vs. 252 HP / 252+ SpD Assault Vest Kyogre: 136-162 (33.6 - 40%) -- guaranteed 3HKO
So Kyogre cannot just switch in... if it does, it take 1/3, is outspeed and takes another 1/3 and since no boosts means no -Defenses, and no boosts to Spectral Thief, Kyogre will not be able to do much. The next turn it has to switch out before it is KOed.
Ultimately, Kyogre has to come in on a slow pivot, use both turns to attack Gardevoir-Mega, and then hope it is not carrying Spore. If it has Spore, it can sleep, boost, and sweep, as RegenVest sets lack Safety Goggles, and miss Poison Heal’s anti-Sleep perks.
Just double the damage for Mega’s Shell Smash. *I am assuming it is already past it’s Mega Evolution Transformation to assume worst case scenario on not being able to use Simple.*
As for a Chansey, if Gardevoir has Spore, since Chansey cannot hold onto Safety Goggles, it can sleep, set up, and Sweep...
+2 252+ SpA Pixilate Gardevoir-Mega Boomburst vs. 248 HP / 252 SpD Eviolite Chansey: 367-433 (52.2 - 61.5%) -- guaranteed 2HKO
For Soundproof, who are you using? If I use Spore on a non-Safety Goggles variant, Stored Power should be just fine as I can use the sleep to set up and sweep.
Please stop pretending I didn’t list Spore as the primary option for the 4th move, your Chansey and Kyogre are outsped and unable to prevent Sleep.
Sure, the set has a slight niche if it gets setup successfully and can probably drop at least one mon. But Mega Gardevoir has many more potential abilities it can run to keep it from being so predictable like the base form.
Um, let’s focus on what stops it- Prankster Haze/Topsy Turvey - which can lack Safety Goggles and can take hefty hits from Boomburst- such as Giratina, Soundproof (if it can take a Boosted Stored Power- which is extremely unlikely), and Unaware (if I am not using Photon Geyser at +4 SpA), and Priority. So far, the only safe way to not get hit by a powerful move, whether it be Boomburst or Stored Power, would be a Priority Attacker. Everything else risks being Spore, Boombursted, or hit by the necessary Psychic move. Your ideas are based off what set? Which Pokémon for Topsy Turvey? I am sure my set has a workaround for most.