https://pokepast.es/80f2700247e6f819
Kommo-o + Waterpon Sand
Teambuilding Process:
Ttar and Excadrill are the classic sand core, Moltres deals with Fighting Types and physical attackers in general, especially MScizor, and punishes U-turn, Ogerpon switches in on water types for them, forming a solid defensive backbone as well as pressuring Urshifu and defensive Tusk, which the Sand core struggles with and decimating Rain. Kommo-o provides a secondary switch-in to water types and Rillaboom, Mola, and Tangrowth under threat, chosen over DNite for its ability to break Metal Birds, which the team otherwise struggles with. Lele provides speed control and means Dondozo doesn't just wall the whole team, as well as appreciating the fact that everything else in the team deals with Heatran and and Clodsire.
Tyranitar-Mega @ Tyranitarite
Ability: Sand Stream
Tera Type: Rock
EVs: 252 HP / 116 Atk / 140 SpD
Adamant Nature
- Stealth Rock
- Pursuit
- Stone Edge
- Knock Off
The best Sand setter there is. EVd to live a +2 12 SpA Ghold MiR, and not to get 2hkoed by Scarf Lele Moonblast, Specs Koko Dazzling Gleam, and unboosted Adamant DNite EQ, as well as 2hkoing Tran and Gliscor after Rocks with Stone Edge, while Knock ohkoes defensive Ghold. Knock over Crunch to make better progress, Pursuit to punish things which want to U-turn on it for free and to trap the likes of Ghold and Moltres, Rocks for progress and Stone Edge as a nuke.
Excadrill @ Steelium Z
Ability: Sand Rush
Tera Type: Ground
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
- Earthquake
- Iron Head
- Rapid Spin
- Swords Dance
Excadrill makes the most of Ttar's sand and serves as my hazard control. The only maybe non-standard thing in Steelium Z, which is run to be break past Zapdos, Moltres, Zard, Tusk and Tera'd Garg at +2 and/or with some chip.
Moltres @ Heavy-Duty Boots
Ability: Flame Body
Tera Type: Dragon
EVs: 248 HP / 228 Def / 32 Spe
Bold Nature
- Roost
- Flamethrower
- Toxic
- U-turn
Switches in on physical attackers and fighting types for Ttar. 32 Speed EVs outspeed max Speed Ursaluna Bloodmoon, the rest for physical bulk, allowing it to more than likely not get 3hkoed by Sneasler's pre-Tera Acrobatics, and not to get 2hkoed by Tera Acrobatics, as well as living Scarf Urshifu's Surging Strikes and not getting 2koed by Tera Firepon Ivy Cudgel. Toxic over Hurricane so that Mola and opposing Ttar don't just sit on it, and Tera Dragon to keep the Fire and Grass resists for Ogerpon and Rillaboom, as well as reversing it's weaknesses to Electric and Water for Urshifu and Mixed/Specs Valiant in a pinch.
Ogerpon-Wellspring (F) @ Wellspring Mask
Ability: Water Absorb
Tera Type: Water
EVs: 200 HP / 116 Atk / 192 Spe
Jolly Nature
- Ivy Cudgel
- U-turn
- Horn Leech
- Spikes
Works really well with the Sand core as it switches in on water types for free and breaks past Garg and Tusk. EVd to outspeed Garchomp while not getting 2hkoed by Scarf Lele Moonblast (ohkoing with Ivy Cudgel) and +2 12 SpA Ghold after Tera, and Mixed Valiant Moonblast pre-Tera. Run as a spiker as it gets plenty of entry opportunities and scares out half the metagame - Tusk, Ghold, Urshifu, Volc, and sets up Spikes for free. It also beats most, if not all, Ursaluna Bloodmoon variants.
Kommo-o @ Punching Glove
Ability: Bulletproof
Tera Type: Electric
EVs: 76 HP / 252 Atk / 180 Spe
Jolly Nature
- Drain Punch
- Thunder Punch
- Ice Punch
- Dragon Dance
One of the team's 2 main wincons. 180 Spe means I outspeed Zama and Lopunny at +1 without really sacrificing any important speed tiers, with the spare EVs going into HP for bulk, meaning Scarf Urshifu Surging Strikes doesn't 3hko and 12 SpA Ghold's MiR doesn't 2hko, as well as helping it break past MScizor. Drain Punch over CC for better longevity, Thunder and Ice Punch for Bolt-Beam coverage, all boosted by Punching Glove. Tera Electric to guarantee the 2hko on Pex and offensive Ghold at +1.
Tapu Lele @ Choice Scarf
Ability: Psychic Surge
Tera Type: Psychic
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Moonblast
- Psychic
- Focus Blast
- Hidden Power [Fire]
Standard Scarf Lele as the team's other main wincon. Psychic over Psyshock as my team already has enough ways to remove special walls, and HP Fire over Future Sight for MScizor, which can be really annoying.