Please let me know if there are any issues, but I hope you enjoy:]
Gallade-Mega @ Galladite
Ability: Justified
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Swords Dance
- Close Combat
- Zen Headbutt
- Knock Off
Tapu Lele @ Psychium Z
Ability: Psychic Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Calm Mind
- Psyshock
- Moonblast
- Focus Blast
Celesteela @ Leftovers
Ability: Beast Boost
EVs: 248 HP / 104 Def / 156 SpD
Relaxed Nature
- Leech Seed
- Protect
- Heavy Slam
- Flamethrower
Landorus-Therian @ Choice Scarf
Ability: Intimidate
EVs: 248 HP / 24 Atk / 40 Def / 196 Spe
Jolly Nature
- Earthquake
- U-turn
- Hidden Power [Ice]
- Defog
Clefable @ Leftovers
Ability: Magic Guard
EVs: 252 HP / 244 Def / 8 SpD / 4 Spe
Bold Nature
IVs: 0 Atk
- Stealth Rock
- Moonblast
- Soft-Boiled
- Thunder Wave
Gastrodon-East @ Leftovers
Ability: Storm Drain
EVs: 248 HP / 8 Def / 252 SpD
Sassy Nature
- Scald
- Recover
- Toxic
- Earthquake
The dark horse I chose to build around was Mega Gallade, which is a phenomenal and underrated balance breaker with swords dance and access to knock off so that it can pressure psychic types like Mew and be a spammable move in general. Tapu Lele is an excellent partner because it provides psychic terrain support, boosting gallade's zen headbutt to monstrous levels, even able to 2hko clefable, and ohko it at +2 if not unaware, as well as protecting against priority. CM Lele helps out the team with the stall matchup which Gallade struggles against, destroying any non jirachi stall. Celesteela, Clefable, and Gastrodon is an excellent defensive core covering a large portion of the metagame. This core can take attacks from pokemon that threaten Gallade like Pinsir, Tapu Lele, Tapu Koko, Greninja, etc. Finally, scarf Landorus provides defog, speed control, an additional electric and ground immunity to take pressure off of Celesteela and Gastrodon, as well as Clefable with intimidate. This can revenge kill threats against Gallade and Lele as well. This team has worked well in testing on high ladder, while still weak to Jirachi stall and certain HO teams, however, Gallade+Lele is a monstrous core that has put in tons of work:].