Gyarados @ Flyinium Z
Ability: Moxie
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Dragon Dance
- Bounce
- Waterfall
- Earthquake
Gyarados is a prominent sweeper in OU, distinguishing itself from other Dragon Dance sweepers and Water-types due to its ability to consistently break through premier Grass-types such as Tangrowth, Tapu Bulu, and Ferrothorn with its access to STAB-boosted Supersonic Skystrike. Gyarados is primarily seen on hyper offense builds, where it can exploit its bulk either behind dual screens or Aurora Veil, which grants it more opportunities to freely set up, or behind Sticky Web, where it becomes an increasingly terrifying late-game sweeper. Sticky Web also helps remedy Gyarados's average Speed tier, allowing it to outpace Pokemon such as Mega Alakazam and Tapu Koko without setting up. Gyarados struggles to break past defensive Electric-types such as Zapdos and Rotom-W, so Pokemon such as Landorus-T and Zygarde make excellent partners. Gyarados cannot break past Unaware users such as Pyukumuku and Quagsire either, so hard hitters such as Kartana and Kyurem-Bed also make good partners.
Here's a replay from the first cycle of the Official Ladder Tournament, which showcases how easily Gyarados is able to set up and sweep:
https://replay.pokemonshowdown.com/gen7ou-780742938
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