Bulbapedia (TCG)

Bulbapedia is the long-running community-edited Pokemon encyclopaedia, and its TCG section is one of the most comprehensive references available for the trading card game. Every set has its own page, every card has its own entry with rules text, illustrator credits, and printing history.

For research into card variants, error printings, and the historical context of older sets, Bulbapedia is unmatched in depth.