>>22536095>It's the next thing in lineYeah no it's not. If anything is, it's Sableye. You know nothing. There's too many good arguments as to why Metagross is merely excellent, and not arguments ala "well Greninja is frail" which rarely comes up when Greninja is used correctly, but nuances that make it easier to handle than its stats make it seem.
-Meteor Mash
-Zen Headbutt
-Hammer Arm / Earthquake
-Grass Knot / Ice Punch
This is its best set. If you run Ice Punch+Grass Knot you are completely walled by steels. If you run Hammer Arm+Earthquake you are walled by a ton of things, primarily bulky waters. This means something like Gliscor paired with a bulky water can handle every competently-built Metagross set. Utility moves in Agility, Bullet Punch and Pursuit make its coverage problems worse, it really does have poor STAB coverage.
It's bulky, and it can avoid being OHKOed from stuff like Garchomp's EQ, but on the other hand it's often an offensive team's only switch in to things like Latios, Mega Gardevoir, Mega Altaria. Primarily Latios. Being depends on to check these threats make it easier to revenge kill after it takes that chip damage.
The fact that so many generic things are checks make it harder to use. Teams can stack checks to it without even trying. Like if a team has Ferrothorn, Slowbro and Lando-T, all of these are Metagross checks and you can't reliably predict a switch in. This is unlike Greninja, where its checks were very specific. It also means that soft checks like SDef Mew don't always have to worry that they'll switch in to a Meteor Mash and be 2HKOed.
There's a handful of good counters, not many but there are. Bulky Mega Scizor, Counter Skarmory, Bronzong, PhD Mew, and Mandibuzz can all switch in pretty easily and beat it.
tl;dr
Restricted moveset
Easily worn down
Easy to stack checks against it
Some hard counters
It's great but not overpowered