Ou Team, Lets do some modifications

I don't agree with running grass knot on metagross due to it being a physical attacker and considering you already have breloom on the team, which is perfect for dealing with bulky ground/water types. I personally would run a priority move like bullet punch, considering all sweepers need some form of priority in order to successfully sweep a team. And while you do run ice punch, now in his mega form, metagross is gonna suffer from the intimidate drop in attack from scarfed lando. In order to sustain survivability, I would replace grass knot with either agility or magnet rise, in order to counter the scarfed Pokémon (especially lando) or run bullet pumch in order to ensure metagross can sweep teams more easily.

Your main idea for running baton pass on sylveon is interesting and I could see how it can help you in certain circumstances, though I feel as though, with a bulky special sweeper like syveon who is already gonna take a whole lot of punishment, having a move just to gain some form of momentum, but potentially sacrificing a hard hitting fairy type. Now that wouldn't be to bad, since 4 out of your 6 Pokémon run special attacks. But sylveon can be a game changing aspect late in the match, and I feel like its survivability matters, especially since if it dies, m-sableye can wreak havoc on this team. Hp ground is good for covering sylveon's steel type weakness, however, running Hp rock would be more beneficial since there isn't a stealth rocks user and with the combo of rotom-wash and starmie, you can cover sylveon's weakness already. As for alternating baton pass, I would personally go with toxic instead, just to help whittle down walls on opposing teams.

While the rest of your team looks solid as is, I would caution you using such a hyperoffensive team, as there are plenty of Pokémon who can wall your Pokémon. 4/6 Pokémon on the team are special attackers, and while having psyshock on 2 of them could classify them as a mixed attacker, one of them is sylveon which will be locked into the first move it uses, and the other doesn't have any EVs in special attack because it plays a more supportive role. Scarfed lando with knockoff, eq, stone edge, and U-turn could prove to be fatal to this team, along with assult vest goodra walling half the Pokémon. I would definitely replace a Pokémon for a special wall, because that seems to be the biggest issue I have personally with this team. But other than that, the Pokémon themselves cover each other's weaknesses, and I love that you are using thunderous and starmie together, as they aren't too commonly used surprisingly and they can ruin an opponents day.

Anyways, good team, though I would change the sylveon and metagross thing. Definitely has the potential to have very quick and easy wins if the opponent doesn't play it right. Take my opinion with a grain of salt, and I hope other trainers will bring their imput also.

 

well first of all metagross has to have metero mash! i know it has a chance to miss but it is stronger and it has a high chance of raising its attack which is ultimate! IN addition, you dont have a scarfer on the team! It is highly impotrant to have one, because there are other scarfers that are hitting really hard and you dont want to be hitted not even once (e.x darmanitan).I know thundurus know t-wave but it will be hitted really hard in order to paralyze the scarfer! I like starmie a lot since its fast and spin away the unwanted rocks. Also, sylveon dont need to have baton pass because it is quite slow and it will be hitted anyway! Better is shadow ball for any metagross switch! Also, metagross doesnt need grass knot! I know slowbro is a problem but you have sylveon, rotom, thundutus for that! I think the better se for mega metagross is to have EQ, meteor mash, zen headbutt and bullet and let the others clean what you cant faint! This is my opinion on that!

 

Martisan:

Well he did state that he wanted to use iron head for the precision purposes, and I honestly think that unless you are facing an intimidate Pokémon, iron head is a complete viable move and alternative over meteor mash. You should also realize that almost none of the percentages in Pokémon are actually high. 20% is not high at all, raising the attack only 1/5 times on average. We have all been there when we bank on a scald to burn an opponent and it takes way more than 5 turns, when it should be preferably the first or second time. And the 90% accuracy means it will only hit 9/10 times on average. Therefore, I see meteor mash as more of a gamblers move, but he prefers to be sure on some things, and that's why Iron Head is a better option for Xarn because it is a sure hit, and an extra 30% chance to flinch. He doesn't necessarily need to have a scarfed Pokémon on the team if he runs a priority move, or if metagross runs agility, since of the most prominent scarfed Pokémon like landorous, garchomp, latios, and keldo can all be handled by metagross quite well.

You do bring a valid point about sylveon's speed though, and in a way that adds even more incentive not to run baton pass on sylveon. I did not think of running shadow ball, and it could be a better option than toxic, with the 10% (I think) of a sp. def drop.

 

Iron Head: 80 BP, 100% Acc. =80 Adjusted BP
Meteor Mash: 100 BP, 90 Acc =90 Adjusted BP, and 20% chance to increase Attack.

Also, Grass Knot is not really necessary, due to the rest of your team. I'd actually recommend Hammer Arm(!!!) because most of the rest of your team is walled by Ferrothorn.

Finally, I see you have a great time(not really) with Scarf-Excadrill. It totally doesn't beat 4/6 members of your team. I'd say maybe a Landorus-I in the spot of Sylveon. Not only does it help beat Sableye and hit Heatran way harder, but it also sets up Stealth Rocks.

P.S. I dunno if Starmie is really the best choice, You could try the Lati twins or even Mandibuzz to handle the Bisharp weakness.