Let's start with an overview of the team as a whole.
There are some notable common type weaknesses, 3 or your Pokemon are weak to Water, with only one immunity and one resist. That's not too bad, but also, the same 3 are weak to Ground, a very common type for coverage, with only one resist. once Ogerpon-W goes down, your team is vulnerable to any sweeper with Earthquake. This wouldn't be as horrible if you had a Pokemon to take care of common Ground and Water types, but you don't. Your team is too reliant on Ogerpon-W, so it will really struggle if she gets KOed.
Also, Rock Polish Mega Diance will rip through this team.
I'll go through how each Pokemon could improve.
Ogerpon-W
Pretty standard set, looks fine. Nothing wrong with it.
Tapu Lele
Looks ok. I would put a coverage move like Thunderbolt, Energy Ball, Hidden Power Fire/Ice or Shadow Ball over Psyshock, because in most situations you won't need both, especially with scarf because nobody's going to send in a special wall if they know you have Psyshock. Also Modest would be better than Timid for the nature, because Gouging Fire is banned now, and Booster Speed Great Tusk is pretty rare. 433 speed is plenty for you.
Iron Boulder
It's ok... but Iron Boulder is Rubl for a reason. You can use it if you want, but be careful You ay want to swap Close Combat with Earthquake and Tera Ground to hit more stuff and have EdgeQuake coverage with Mighty Cleave. You could also swap it with a Mega, as this is Natdex and You don't have one. Mega Beedrill and Mega Aerodactyl would both appreciate Psychic terrain support. Having a flier like Mega Aerodactyl would help with You teams Ground weakness. Mega Beedrill would give your team a power boost and a potent sweeper if you get a Fell Stinger off in Psychic Terrain.
Here are some sets that could work:
Aerodactyl-Mega @ Aerodactylite
Ability: Pressure ---> Tough Claws
Tera Type: Ground/Steel
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
- Stone Edge
- Hone Claws
- Dual Wingbeat
- Earthquake/Iron Head/Crunch/Whatever
Sad that none of the good Rock STAB moves make contact.
Beedrill-Mega @ Beedrillite
Ability: Swarm ---> Adaptability
Tera Type: Steel
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Fell Stinger
- Poison Jab
- U-turn
- Knock Off
U-turn or Knock Off could be replaced with Drill Run if you want.
Ferrothorn
Looks fine, but I would replace Power Whip with Knock Off for utility or Protect for an extra turn of Leftovers and Leech seed healing. You don't need two attacks.
Skeledirge
He's banned to Ubers now. You'll need to use a different Unaware wall. I would recommend Dondozo, as a physical wall with typing to compliment Heatran. Here's a set:
Dondozo @ Leftovers
Ability: Unaware
Tera Type: Grass
EVs: 252 HP / 4 Atk / 252 Def
Impish Nature
- Rest
- Sleep Talk
- Wave Crash
- Curse
Dondozo can wall, set up, and deal massive damage. Most Physical attackers switch out at the sight of a Dondozo. You could also use Alomoloma (Or however you spell that), but I feel that Alo is too passive, and you already have quite a few somewhat passive walls anyway.
Heatran
Heatran looks pretty good. You might want to put Stealth Rock on Ferrothorn, over spikes. This will free up a moveslot for something like Taunt, for stopping setup and stall, Wil-O-Wisp to cripple physical attackers you may meet (This can also help Heatran act as a mixed wall, a Special Wall with Burn capability.) or Roar to stop setup or help spread Toxic, or get the Natural Cure Blissey out of your face.
Thanks for reading. Hope I helped. Feel free to comment if you have any ideas, concerns, or rage.
