Alright, since one liners will get deleted, l'll just write up some ideas of strong combinations.
Slow Bulky Prankster + Copycat + Dive/Fly/Dig Stall
The idea is to become unhittable by pulling off a slow two turn move, then using priority Copycat to become unhittable. Could choose a typing that provides STAB and use Toxic in the last slot to attempt to win without PP stalling, however Dark types are unhittable. Could also use substitute to improve your chances of pulling off a slow two turn move. With the DLC came a large selections of Ubers which provide bulk, such as Lugia, which also provide useful abilities, such as Multiscale in the case of Lugia.
Psychic Surge Psychic Spam
The premise is simple, maximize your Sp. Atk (or Atk) stat with an Uber Mon like Necrozma-Dawn-Wings or Kyurem-White, add STAB, the Terrain Boost, and possible Choice Specs to nuke the opposing Pokemon with Photon Geyser to bypass Sturdy/Multiscale/Shadow Shield. Psychic Terrain also protects you from priority moves. With that said...
Extreme Speed + Max Atk + Pixelate
Another simple but effective strategy. Maximize your attack state with an Uber like Kyurem-Black paired with Extreme Speed+STAB+Pixelate+Possible Choice Band. Obviously hard counter by Psychic Surge, however you have options to get creative here and use a slower terrain setter... If you can manage to fit the option on your team.
Ground Type Prankster + Electrify Stall
Another fun concept, use a ground type with Prankster and then spam electrify. Use toxic or similar residual damage before hand to secure a knock out before you run out of Electrify PP. Struggles against faster priority like Extreme Speed, dark types immune to prankster, and steel types immune to toxic, but if you get creative with your team this can be a powerful and fun combination!
There are other fun combinations in Chimera 1v1 like Simple+Set Up+Priority,
Fast Skill Swap+Truant (nvm this is banned), Steely Spirit+Sunteel Strike, and Contrary+Dragon's Ascent and/or V-Create. You can pull inspiration from Balanced Hackmons and 1v1 to come up with some powerful combinations. Of course, the more flexible your combinations, the better for climbing this ladder when it's playable.
As you can probably tell, I really like this meta.
And I still have hope