Thank god I did it. The first suspect I've finally succeeded in reqs.
First, I want to apologize for taking an actual screenshot of my PC web page from my phone; I have no idea how to take screenshots of web pages on my phone, so this is the best I can offer. If you are displeased with this, please let me know so I can figure out how to actually take a screenshot.
Second, the reason my username is NXMETA GXE instead of NXMETA Beedrills is because the latter account suffered from about 50% GXE and was pretty irreparable by the time I hit a certain number of games. I actually created four different NXMETA accounts before I finally made one that actually promised me 80 GXE.
So, in about 41 battles, I probably ran into only two Mega Metagross. Both times, I actually got wrecked, so now I'm thinking about pro-ban.
Aside from this, Mega Metagross is just really good. 145 Attack and 110 Speed already makes Metagross incredibly good. Access to STAB
Meteor Mash and
Bullet Punch, in tandem with Tough Claws, makes it all the more fearsome as an offensive threat. I guess what really makes Mega Metagross stand out, however, is that
massive 150 Defense. Yeah, it pales in comparison to some of the bulkier walls in the game, but if your main intent is to set up and then go to town, then the bulk works perfectly for that one turn of set-up. Yeah, the thing can run
Agility or
Rock Polish, and although those are probably not the first things that come to mind, a Mega Metagross with +2 Speed must probably be an absolute fuck if you're not running anything with Sucker Punch. Speaking of which, there's only two Sucker Punch users I can think of that are great in OU: Mega Mawile and Bisharp. Let's see how they fare against Mega Metagross:
-252+ Atk Huge Power Mawile-Mega Sucker Punch vs. 4 HP / 0 Def Metagross-Mega: 204-240 (67.5 - 79.4%) -- guaranteed 2HKO
-252+ Atk Life Orb Bisharp Sucker Punch vs. 4 HP / 0 Def Metagross-Mega: 226-268 (74.8 - 88.7%) -- guaranteed 2HKO
By the way, this is assuming that Mega Metagross is running Jolly with only 4 HP EVS and
nothing in defense. That bulk is pretty hefty. Now if you calculate how much Mega Metagross can do in return with EQ, one of its popular coverage moves:
-252 Atk Metagross-Mega Earthquake vs. 0 HP / 4 Def Mawile-Mega: 194-230 (80.4 - 95.4%) -- guaranteed 2HKO
-252 Atk Metagross-Mega Earthquake vs. 0 HP / 4 Def Bisharp: 236-278 (87 - 102.5%) -- 18.8% chance to OHKO
Absolutely terrifying. They're not exactly reliable checks. And even if Mega Mawile or Bisharp does survive, both are going to get cleaned up with
Bullet Punch. This just goes to show how that defense helps for Mega Metagross. Of course, you can contest that Meteor Mash is 90% accurate and is not always going to give the Attack boost; this thing also has access to
Hone Claws. Let that sink in.
Of course, the other "reliable" checks have been the aforementioned Mega Slowbro and Mega Scizor, and probably the latter if Mega Metagross is running
Thunder Punch (which actually seems to be popular in comparison to Ice Punch). It's basically like the Genesect scenario with Heatran and Rotom-Heat (except those guys were getting chipped heavily with U-Turn). Hell, even scarfed jolly max Attack EV Landorus-T can't OHKO it with EQ, and it can
still have a chance of getting OHKO'd by
Ice Punch even with the Intimidate drop.
So to summarize, rather than Attack or Speed, I think Mega Metagross's true dangerous feature lies in its bulk. The bulk allows it to survive most moves that would normally kill regular Metagross and can either allow it to set up or get a straight-up confirmed kill. I'd be willing to listen to any possible anti-ban arguments, but now, I'm leaning on
BAN. Gonna be honest, though, I'm going to miss him.
EDIT: I just realized this thing has more bulk than fucking Skarmory. Christ.