Where it comes from
The line in the source
pg=736 | hitCnt 87 | 強化拡張パック「イーブイヒーローズ」 | 2021年 5月28日（金） Explore / Figure
Record
Cards in set (card-search hitCnt), released 28 May 2021
87 cards Released 28 May 2021
ReportedReported by a reliable secondary source, or read carefully from filed documents.