| 2026-07-22 | $12.50 | 8 | PSA | 1999 POKEMON FOSSIL #56 TENTACOOL PSA 8 #56 | — |
| 2026-07-20 | $0.99Outlier | — | Raw | Pokemon Card 1999 TENTACOOL Common 56/62 Original Fossil Set Vintage 56/62 | — |
| 2026-07-19 | $0.43Outlier | — | Raw | Tentacool #56 Near Mint English | — |
| 2026-07-18 | $0.43Outlier | — | Raw | Tentacool #56 Near Mint English | — |
| 2026-07-18 | $5.78 | 9 | CGC | CGC 9 Tentacool 56/62 Fossil 1999 English Pokemon TCG Wizards of the Coast 56/62 | — |
| 2026-07-18 | $1.91 | — | Raw | Pokemon TCG | Tentacool 56/62 | Fossil Common Unlimited | Near Mint 56/62 | — |
| 2026-07-18 | $1.99 | — | Raw | Tentacool 56/62 Common Fossil Pokemon Unlimited Lightly Played 56/62 | — |
| 2026-07-17 | $1.47 | — | Raw | Tentacool 56/62 Common Fossil Pokemon Lightly Played 56/62 | — |
| 2026-07-17 | $1.22 | — | Raw | Pokemon TCG | Tentacool 56/62 | Fossil Common | Moderately Played 56/62 | — |
| 2026-07-17 | $2.63 | — | Raw | Tentacool 56/62 - Fossil - Common Vintage WOTC Pokemon Card - NM 56/62 | — |
| 2026-07-17 | $1.75 | — | Raw | Tentacool Vintage 1999 Pokemon Fossil TCG Card 56/62 | — |
| 2026-07-17 | $2.68 | — | Raw | Pokemon Cards Tentacool 56/62 Unlimited Fossil WOTC Common NM 56/62 | — |
| 2026-07-17 | $2.29 | — | Raw | TENTACOOL 56/62 FOSSIL CHROME POKEMON FOSSIL EDITION 1999 TCG PORTUGUES | — |
| 2026-07-17 | $1.60 | — | Raw | Tentacool 56/62 Pokemon Fossil Set - LP | — |
| 2026-07-17 | $1.70 | — | Raw | Pokemon Card Trading Card Fossil No. 56/62 Tentacool English | — |
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