This is the team
Flutter Mane @ Focus Sash
Ability: Protosynthesis
Level: 50
Tera Type: Fairy
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Dazzling Gleam
- Shadow Ball
- Mystical Fire
- Protect
Chi-Yu @ Life Orb
Ability: Beads of Ruin
Level: 50
Tera Type: Fire
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Heat Wave
- Dark Pulse
- Protect
- Psychic
Amoonguss @ Rocky Helmet
Ability: Regenerator
Level: 50
Tera Type: Water
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Clear Smog
- Spore
- Pollen Puff
- Rage Powder
Tornadus
Ability: Prankster
Level: 50
Tera Type: Steel
EVs: 252 HP / 52 SpA / 100 SpD / 100 Spe
IVs: 0 Atk
- Sunny Day
- Tailwind
- Bleakwind Storm
- Taunt
Landorus-Therian @ Assault Vest
Ability: Intimidate
Level: 50
Tera Type: Water
EVs: 252 HP / 252 Atk / 4 Def
Adamant Nature
- Fissure
- Stomping Tantrum
- Rock Slide
- U-turn
Urshifu-Rapid-Strike @ Mystic Water
Ability: Unseen Fist
Level: 50
Tera Type: Water
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Aqua Jet
- Surging Strikes
- Close Combat
- Ice Spinner
The strategy is basically to use Tailwind with Tornadus and sweep trough with Chi-Yu and Urshifu, using Flutter Mane to help Chi-Yu with things who threats It, like fighting types. Landorus is a good offensive intimidater, with great pivot with U-Turn and spread damage with Rick Slide. Fissure+Stomping Tantrum is great on bulky Mons, só naturally i chose a more defensive set here. Amoonguss can redirect moves to help Glass cannons like Flutter Mane and Chi-Yu, while also threatning
setup cores and Dondozo+Tasugiri with Clear Smog. Tornadus can also help Chi-Yu and Flutter Mane with Sunny Day, activating FM Protosynthesys and boosting both its Fire Type attcks. I Will use this Team in the Regionals of Curitiba, so awnser ASAP.