Ethan Crossfield 
Competitive Pokemon players are used to new monsters arriving in waves, not all at once. But a recent leak for Pokemon Winds and Waves suggests Gen 10 could bring an enormous new roster—potentially putting Pokemon Champions in a tough spot right after launch.
The leak: 300+ Gen 10 additions and a packed new Pokédex
A credible leak, according to the source, claims Pokemon Winds and Waves will feature more than 300 new Pokemon for Gen 10—an unusually high number compared with prior generations. The leak further suggests that this total would include both brand-new Gen 10 Pokemon and regional variants of existing species.
The same report also claims that the figure excludes Pokemon with multiple forms and excludes any additional battle gimmick forms that are said to be part of the games. Beyond the sheer size of the Gen 10 roster, the leak allegedly includes a regional variant of Psyduck and two new evolutions for it, along with several other creatures receiving cross-generation evolutions.
If these details are accurate, the franchise could be preparing one of its biggest content expansions ever—at least on paper—at a time when the competitive ecosystem depends on predictable, regulation-based updates.
Why it could be bad news for Pokemon Champions players
Most of the Winds and Waves leak coverage, per the source, comes from an aggregator account called CentroLeaks on X. The concern isn’t about whether Gen 10 exists—it’s about when players can actually use it.
The source says CentroLeaks expects Pokemon Champions to receive Gen 10 Pokemon slowly after Pokemon Winds and Waves launches. The logic is tied to how Pokemon Champions has been adding new creatures: each regulation set appears to introduce only a small number of new monsters, with regulation changes occurring every few months.
Pokemon Champions has effectively become the go-to platform for competitive battles since its release in April of this year. Even so, the current usable roster is only a little over 230 Pokemon out of 1,025 total franchise creatures. The source notes that the mobile release of Pokemon Champions and the start of Regulation Set M-B on June 17 added 22 more missing Pokemon, but that still leaves the National Dex far from complete.
Under a similar “drip feed” approach, players may not get immediate access to their favorite Gen 10 picks from Winds and Waves. Instead, they could be looking at a wait—potentially measured in months—before those new species show up in competitive formats.
A long runway for the franchise—plus a meta tradeoff
Pokemon Winds and Waves is not expected to release until late 2027, according to the source. That gives Pokemon Champions time to increase the pace of roster updates between now and then, if the company decides to respond to the scale of Gen 10.
The source also highlights a split in fan sentiment. Some players value the slower rollout because it can keep the competitive meta more balanced and less volatile. Others, however, may feel frustrated if Gen 10’s biggest additions can’t be tested in the competitive simulator soon after launch.
Either way, the leak’s most immediate impact may be expectation management: if the Gen 10 roster is truly that large, Pokemon Champions players may need to prepare for a long period where “new” doesn’t automatically mean “usable in competitive play.”
Key points
- A leak claims Pokemon Winds and Waves will add 300+ new Gen 10 Pokemon, including regional variants and new evolutions.
- The report suggests Pokemon Champions may receive those Gen 10 additions slowly after Winds and Waves releases.
- Pokemon Champions currently supports only a fraction of the franchise’s full creature roster, even after recent regulation updates.
- Fans are divided: some like the pacing for balance, while others may want faster access to Gen 10 in competitive formats.
| Pokemon Champions regulation set | Total available Pokemon |
|---|---|
| Regulation Set M-A (launch) | 210 |
| Regulation Set M-B | 232 |
Expert View
If the Winds and Waves leak is even partly accurate, it signals a potential mismatch between franchise content scale and competitive rollout cadence. For the competitive scene, the risk isn’t just delayed access—it’s that metas can evolve without the full Gen 10 toolkit, shaping tournament trends before players can explore the new options. For the community, it also raises expectations for how quickly future regulation sets must expand if Nintendo and The Pokemon Company want to keep competitive formats aligned with the mainline games.
