PRE-EVENT CHECK · STANDARD
Check the deck before you travel.
Pick a major event, paste a 60-card list, and see whether the cards and language mix are allowed. If the data cannot prove it, you get UNKNOWN — not a guess.
- Event-specific language rules
- Current Standard marks: H / I / J
- Official links and last-verified time
Pre-check only. The head judge and official event page are the final authority.
Loading events…
Your deck list stays in this browser. It is not uploaded.
UPCOMING
Events in the MVP
HOW IT WORKS
Rules first. Unknown when unsure.
The checker uses the official 2026 Standard rotation (marks H, I, J), official event language policy, and current card data. It never presents a guess as a pass. Read the method.
GUIDES
Before you build the deck
LANGUAGE RULES
Can you mix Japanese and English Pokémon cards?
The short answer, the card-back reason, and what the checker can and cannot tell you.
Read the guide →ROTATION
2026 Standard rotation: H, I, J
What rotated, which marks are legal, and why an older printing may still be usable.
Read the guide →