And the answer is Hatterene, jumping - Smogon University

Ubers - Koraidon

Koraidon (SV)

Koraidon (Pokémon) - Bulbapedia, the community-driven Pokémon encyclopedia

Zacian, Zamazenta, Koraidon and Miraidon have all had their signature abilities removed and replaced with abilities that already exist. How much better/worse do they get? : r/stunfisk

Koraidon moves by RedDemonInferno on DeviantArt

We've Found The Only Way To Stop Koraidon And Miraidon In Pokemon Scarlet And Pokemon Violet

Tournament - Random Battles Team Tour Six Round Seven Also Tiebreaker

Metagame - Category Swap

SPOILERS! - Scarlet & Violet Leaks Thread - Data/Mechanics, Page 239

Even in a restricted Ubers tier, Miraidon is being closely monitored for potential tiering action : r/stunfisk