What are Pokémon counters?

These pages report observed matchup checks from Smogon matchup artifacts. A row is an observation with a sample count, a target KO or switch rate, and a standard error. It is not proof that a Pokémon can always switch in safely.

How are the counter check percentages calculated?

In the upstream artifact, n is the number of relevant encounters, p is the fraction where the target was knocked out or switched out, and d is the standard error sqrt(p(1-p)/n). Lists rank p minus four d, so uncertain observations receive a larger penalty.

How often are the counter lists updated?

Each page displays the source month or merged month range and its generated date. Data changes only when crob.at imports a new source artifact.

How do I use the Pokémon counter search?

Use the search bar to find a Pokémon in available formats. Open a Pokémon to see observations ranked by p minus four standard errors. Inline damage calculations are separate set estimates and do not change the observed matchup metric.

"swampert-mega" – Pokémon Counter Search

15 results for “swampert-mega” across 15 formats · 6 counter guides · 9 usage-only · Clear

Search: "swampert-mega"

Gen 7 OU #16 · 9.99%

Gen 8 National Dex #21 · 8.82%

Gen 9 National Dex #60 · 2.63%

Gen 9 Balanced Hackmons #30 · 5.37%

Gen 6 Pure Hackmons #22 · 10.10%

Gen 9 Champions VGC 2026 Reg M-B Best of 3 #18 · 10.12%

Gen 9 National Dex Monotype #25 · 7.65%

Gen 9 National Dex Doubles #49 · 3.98%

Gen 7 Doubles OU #26 · 6.80%

Gen 6 Doubles OU #51 · 2.62%

Gen 9 Champions BSS Reg M-B #29 · 6.69%

Gen 9 Pokebilitiesbh #10 · 18.18%

Gen 9 Champions VGC 2026 Reg M-B #16 · 11.59%

Gen 9 Champions OU #19 · 10.88%

Gen 9 Nationaldexaaa #64 · 2.09%