The The Valuable Book 21 promotional cards are two promotional cards, "Code Talker Inverted" and "Salamangreat Coyote", included with copies of The Valuable Book 21.
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| Card number | English name | Japanese name | Rarity | Category |
|---|---|---|---|---|
| VB21-JP001 | "Code Talker Inverted" | 「コード・トーカー・インヴァート」 | Ultra Rare | Effect Link Monster |
| VB21-JP002 | "Salamangreat Coyote" | 「転生炎獣コヨーテ」 | Ultra Rare | Effect Monster |