JP card game sets in TCGdex dataset released (lower bound; incl. expansion, starter/deck, special subsets), 2009

Where it comes from

The line in the source

{"cardCount":{"firstEd":0,"holo":0,"normal":0,"official":70,"reverse":0,"total":70},"id":"L1a","legal":{"expanded":false,"standard":false},"name":"ハートゴールドコレクション","releaseDate":"2009-10-09","serie":{"id":"L","name":"LEGEND"}}

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