
This Mega will entirely come down to what ability it has.

Oh how fun. Another SFMA

I heard that Starmie will get Huge Power, which is pretty interesting. Assuming it gets 100 Atk in Champions, that's pretty powerful considering its the same as Mega Medicham has that same Atk, but Starmie is faster and gets boosted Water STAB in the Rain.
Side note this is easily the worst Mega by design. It's literally just Starmie but with longer legs. Even my headcanon Mega Slaking that's intentionally lazy to fit Slaking's lazy nature has more changes.

So my thoughts were Dragonite would either be broken or worse than its regular form depending on how it handles Extreme Speed. Usually Extreme Speed is push over the edge in OMs like give Aerliate to Dragonite or something. Safe to say that Mega Dragonite is just worse here.

I was unironically hoping Meganium would be a physical attack with Flower Veil. It'd be a physical attack immune to both Intimidate and Burn, which is pretty unique only being shared by a few number of Pokemon (which Flower Veil also ignores all status and stat drops too). Being a special attacker is fine too so long as it gets Flower Veil.
Honestly the worst overall Mega from ZA. Second worst design behind Starmie and second worst competitively behind Malamar imo.
With SF + LO Mega Feraligatr should have focused on its other stats like bulk or speed. Investing too much into Atk is pointless since SFLO already hits hard, so it needed the other stats to improve.
Unfortunately it gets only a bit bulkier and doesn't even get any faster. AND IT EVEN WASTES STATS IN SPA WHY???

Now this is GameFreak cooking here. Skarmory utilizing its bulk in its base form to set up with Sword Dance, then Mega Evolves to dish out damage is really nice. It's like that Mega Diancie philosophy.

Ehh. It could have been much worse by having the same stat spread as Mega Glalie but with its own stats (which honestly wouldn't even be that bad given its speed and how it prefers to go physical with Poltergeist and Triple Axel). Feel like this also really needs to have a good ability to work.

Not bad. Looks like its gearing towards Bulk Up strategies. Very curious what its ability will be since its kind of plain otherwise.

I also feel ehh about this. Excadrill is great already with its ability Sand Rush as a sweeper/cleaner and with Mold Breaker for its utility sets. I have no clue if Mega Excadrill will play into either, or be unfortunate with having Sand Force as an ability.

Now this one is also cooking. Besides the +20 to SpA, Mega Scolipede squeezes out value for a Mega that otherwise has a low BST. With +1 from Speed Boost you'd get with skillful play or Protect, Scolipede effectively has 103-117 Speed, which gives it a much higher BST effectively.

It's frankly too slow to be that effective considering its typing.
Urshifu, another Fighting/Dark type, got away with its x4 Fairy weakness by being really strong and hard to switch into, on top of having a decent speed stat. I doubt that Mega Scrafty will be that oppressive considering it can't even hold a choice band and I also doubt it'll get an autocrit move with an ability that bypasses protect.

Oh boy! Another
Slow
Frail
Mixed
Attacker

Call it right now. Shadow Tag. That is all.

I can't say for sure, but this looks like the best of the Kalos starters competitively speaking.
Remember, Chesnaught learns Body Press and with 172 Def and STAB it's the strongest one in the game excluding Tera Fighting.
And it also learns ID, Leech Seed, and can heal too.

Delphox also has potential to be the best one of the Kalos starters with how similar its stats are to Flutter Mane.
Problem is that Flutter Mane also exists, is faster, gets Protosynthesis, and isn't a Mega either. Crazy how even Mega Delphox was powercrept by Flutter Mane.

They really hated the Water type starters huh? Imagine Ash Greninja, but worse. I checked and Ash Greninja is about 60% stronger than Mega Greninja before abilities. So yeah in exchange for being a bit faster and a bit bulkier, you lose a huge amount of Firepower on a glass cannon Pokemon.

Astonishing how this is by far the most boring Mega here. It literally has 20+ across the board. Which sucks since Pyroar really needed to minmax to compete given its lower stats.

I think we might have a contender for the absolute worst Mega.
It's Slow
It's Frail even with that 120 SpD
and It's a Mixed "attacker"
"attacker" in quotes because 102/98 offenses given Malamar's movepool and the lack of an item means Mega Malamar will hit like a wet paper towel.
It wasted 45 of its stats into SpD (which is arguably the least important stat) when it has only alright HP and has not resistances, so its not even that bulky.

Looks ehh like some of the previous Megas here. It's an improvement over the base form, but nothing remarkable.

I feel like Mega Hawlucha will have similar problems with Mega Dragonite. Being that they are fine in a vacuum but you'd really rather use the base form. Like Unburden is really hard to pass up and Mega Hawlucha doesn't even increase the base speed of Hawlucha either (which btw means Mega Scolipede in VGC can speed tie Mega Hawlucha).

Mega Floette is pretty exciting moreso because it's the first time Floette-E itself will be usable with its signature move. It's going to be pretty devastating.

This thing will be hard carried by Shell Smash.

Ok that's kind of unfair. Why between all Megas, Zygarde of all Pokemon gets a lower boost to its stats than the rest? Well it looks like it'll still be relatively good even with only +70 BST. That SpA is nuclear and you still have that massive 216 HP to back it up.

zzzzzzzzzzzzzz sheepy sheepy sheepy
Oh yeah Mega Drampa is kind of boring. Not as boring as Mega Pyroar, but in a way more boring because Mega Pyroar is that boring it actually becomes a little interesting.

Very nice. Similar to Barbaracle, it'll be carried mostly by its set up move in No Retreat. No Retreat on a Pokemon with actual decent stats looks interesting and could let Falinks become actually useful.