CardOpenings

For the hobby

Resources

Independent places to learn, explore, track, collect, buy, sell, and trade cards.

The hobby is bigger when knowledge is shared. These are independent external resources we find useful; CardOpenings is not affiliated with or endorsed by them.

Labels describe each source and its primary role: Official means published by a brand, manufacturer, or grading company; Community means maintained by collectors or players; Marketplace means a place to buy, sell, or trade; and Reference means an educational, archival, or standards-oriented source. Use official sources first for current rules, checklists, and grading policies, and cross-check community information when details matter. Labels are descriptive, not endorsements, and marketplace listings or grading outcomes are never guaranteed.

Learn & explore

Official sources, community knowledge, card databases, and deck-building tools.

Bulbapedia Pokémon TCG encyclopedia Community-maintained Pokémon knowledge, including TCG history and sets. Community Community-edited; verify time-sensitive details against official sources. Limitless TCG Pokémon & One Piece competitive tools Decks, tournaments, and meta data for competitive card players. Community Yugipedia Yu-Gi-Oh! encyclopedia A community-run reference for cards, rules, lore, and releases. Community Piltover Archive Riftbound database & deck builder A community-built card database and deck-building companion. Community DragonBall.gg Dragon Ball Fusion World tools Card database, deck builder, collection tools, and articles. Community Scryfall Magic: The Gathering database Fast card search and reference for Magic players and collectors. Community Pokémon TCG expansions Official Pokémon set information Official expansion pages with set details and card galleries. Official Topps checklists Official sports and entertainment checklists Official Topps checklists and product information for supported releases. Official

Track & collect

Catalog collections and explore card history across sports and games.

Trading Card Database Community catalog & collection tracker A community-driven database spanning baseball, basketball, football, soccer, and more. Community Coverage and checklist details are community-maintained and may vary by release. PSA grading standards Official grading reference PSA's published standards for evaluating card condition across grades. Official A standards page is guidance, not a prediction or guarantee of a grade. CGC card grading process Official grading process CGC's overview of submission, authentication, grading, and encapsulation. Official Services, fees, and turnaround times can change; check CGC before submitting.

Buy, sell & trade

Established marketplaces to explore when buying, selling, or trading.

TCGplayer TCG marketplace Marketplace for collectible card games, singles, sealed product, and supplies. Marketplace Listings and prices come from individual sellers; review condition and terms carefully. Cardmarket European TCG marketplace European marketplace for trading card games and accessories. Marketplace Listings and prices come from individual sellers; review condition and terms carefully. Mana Pool Magic: The Gathering marketplace Marketplace for Magic singles and sealed product. Marketplace Listings and prices come from individual sellers; review condition and terms carefully.