 TentacoolLegendary Collection · #096/110 · Reverse Holofoil · English | | $169.05 | 0.0% | 0.0% | +16.4% | +29.0% | +128.5% | Oct 14, 2026 |
 TentacoolAquapolis · #113/147 · Reverse Holofoil · English | | $35.00 | 0.0% | 0.0% | 0.0% | +30.5% | +55.6% | Oct 14, 2026 |
 TentacoolEX Legend Maker · #66/92 · Reverse Holofoil · English | | $31.49 | 0.0% | 0.0% | -37.6% | +6.7% | +173.1% | Oct 14, 2026 |
 Misty's TentacoolCoroCoro Promotional Cards · #— · Normal · Japanese | | $24.93 | 0.0% | 0.0% | -0.0% | -7.7% | +18.7% | Oct 14, 2026 |
 TentacoolEX Hidden Legends · #77/101 · Reverse Holofoil · English | | $20.60 | 0.0% | 0.0% | +21.2% | +24.8% | +53.0% | Oct 14, 2026 |
 Misty's Tentacool (32)Gym Heroes · #032/132 · 1st Edition · English | | $15.91 | +0.4% | +2.9% | -2.7% | +3.0% | +1.1% | Oct 14, 2026 |
 Tentacool (Alpha)XY - Primal Clash · #71/160 · Reverse Holofoil · English | | $15.45 | 0.0% | +5.2% | +24.7% | +76.2% | +148.4% | Oct 14, 2026 |
 Misty's Tentacool (57)Gym Heroes · #057/132 · 1st Edition · English | | $14.77 | -0.3% | +1.7% | +3.2% | +15.1% | +47.3% | Oct 14, 2026 |
| No imageTentacool (Master Ball Pattern)SV2a: Pokemon Card 151 · #072/165 · Holofoil · Japanese | | $12.21 | 0.0% | 0.0% | +2.9% | +12.7% | +42.3% | Oct 14, 2026 |
| Misty's Tentacool (32)Gym Heroes · #032/132 · Unlimited · English | | $10.66 | 0.0% | +1.4% | +4.0% | +9.3% | +21.4% | Oct 14, 2026 |
 TentacoolWind from the Sea · #028/087 · 1st Edition · Japanese | | $7.06 | 0.0% | — | 0.0% | -5.9% | — | Oct 14, 2026 |
 TentacoolTriumphant · #80/102 · Reverse Holofoil · English | | $6.78 | 0.0% | +5.3% | +10.1% | +69.9% | +184.9% | Oct 14, 2026 |
 TentacoolXY5-Bt: Tidal Storm · #041/070 · 1st Edition · Japanese | | $6.72 | 0.0% | 0.0% | 0.0% | +17.5% | — | Oct 14, 2026 |
| TentacoolWind from the Sea · #028/087 · Unlimited · Japanese | | $6.00 | 0.0% | — | 0.0% | — | — | Oct 14, 2026 |
 TentacoolL3: Clash at the Summit · #017/080 · 1st Edition · Japanese | | $5.97 | 0.0% | 0.0% | +3.3% | +3.3% | +33.0% | Oct 14, 2026 |
 Misty's TentacoolLeaders' Stadium · #— · Normal · Japanese | | $5.22 | 0.0% | -0.2% | -2.6% | -1.9% | +1.8% | Oct 14, 2026 |
 TentacoolLegends Awakened · #125/146 · Reverse Holofoil · English | | $4.99 | 0.0% | 0.0% | +54.0% | +107.1% | +113.2% | Oct 14, 2026 |
 TentacoolSM2L: Alolan Moonlight · #008/050 · Normal · Japanese | | $3.75 | 0.0% | — | 0.0% | -2.6% | -5.1% | Oct 14, 2026 |
 Misty's TentacoolCity Gym Decks · #— · Normal · Japanese | | $3.68 | 0.0% | 0.0% | 0.0% | 0.0% | -0.3% | Oct 14, 2026 |
| TentacoolAquapolis · #113/147 · Normal · English | | $3.50 | 0.0% | 0.0% | +2.9% | +16.7% | +59.8% | Oct 14, 2026 |
| TentacoolXY5-Bt: Tidal Storm · #041/070 · Unlimited · Japanese | | $3.50 | 0.0% | 0.0% | +17.1% | +17.1% | +17.1% | Oct 14, 2026 |
| Tentacool (Alpha)XY - Primal Clash · #71/160 · Normal · English | | $3.45 | +1.8% | +10.6% | +8.5% | +125.5% | +400.0% | Oct 14, 2026 |
 TentacoolMirage Forest · #020/086 · 1st Edition · Japanese | | $3.00 | 0.0% | — | 0.0% | 0.0% | — | Oct 14, 2026 |
| Misty's Tentacool (57)Gym Heroes · #057/132 · Unlimited · English | | $2.60 | -1.1% | +0.8% | +7.4% | +4.0% | +22.6% | Oct 14, 2026 |
 TentacoolFossil · #56/62 · 1st Edition · English | | $1.48 | -4.5% | -5.7% | +2.8% | -17.3% | -26.4% | Oct 14, 2026 |
 TentacoolXY5-Bt: Tidal Storm · #040/070 · 1st Edition · Japanese | | $1.25 | 0.0% | 0.0% | — | — | -37.5% | Oct 14, 2026 |
| TentacoolLegendary Collection · #096/110 · Normal · English | | $0.76 | 0.0% | -1.3% | +7.0% | +15.2% | +26.7% | Oct 14, 2026 |
 TentacoolSM9: Tag Bolt · #045/095 · Normal · Japanese | | $0.69 | 0.0% | 0.0% | 0.0% | — | 0.0% | Oct 14, 2026 |
| TentacoolTriumphant · #80/102 · Normal · English | | $0.68 | 0.0% | +1.5% | +11.5% | -5.6% | +36.0% | Oct 14, 2026 |
 TentacoolXY - Primal Clash · #70/160 · Reverse Holofoil · English | | $0.66 | 0.0% | 0.0% | +1.5% | +13.8% | +32.0% | Oct 14, 2026 |
 TentacoolSM9a: Night Unison · #007/055 · Normal · Japanese | | $0.60 | 0.0% | — | — | 0.0% | +200.0% | Oct 14, 2026 |
 TentacoolMystery of the Fossils · #— · Normal · Japanese | | $0.56 | 0.0% | +1.8% | -3.4% | -16.4% | -13.8% | Oct 14, 2026 |
| TentacoolFossil · #56/62 · Unlimited · English | | $0.52 | 0.0% | -10.3% | -10.3% | +20.9% | +36.8% | Oct 14, 2026 |
| TentacoolLegends Awakened · #125/146 · Normal · English | | $0.49 | 0.0% | +2.1% | +4.3% | +19.5% | +36.1% | Oct 14, 2026 |
 TentacoolSM - Unbroken Bonds · #40/214 · Reverse Holofoil · English | | $0.37 | 0.0% | -2.6% | -5.1% | -2.6% | +8.8% | Oct 14, 2026 |
| TentacoolEX Hidden Legends · #77/101 · Normal · English | | $0.36 | 0.0% | -7.7% | -10.0% | -10.0% | -5.3% | Oct 14, 2026 |
| TentacoolEX Legend Maker · #66/92 · Normal · English | | $0.35 | 0.0% | -2.8% | -2.8% | -10.3% | -10.3% | Oct 14, 2026 |
 TentacoolSM - Team Up · #60/181 · Reverse Holofoil · English | | $0.35 | -2.8% | -2.8% | -5.4% | +2.9% | +16.7% | Oct 14, 2026 |
 Tentacool (Poke Ball Pattern)SV2a: Pokemon Card 151 · #072/165 · Holofoil · Japanese | | $0.35 | 0.0% | 0.0% | +2.9% | -2.8% | -12.5% | Oct 14, 2026 |
 TentacoolSM - Guardians Rising · #23/145 · Reverse Holofoil · English | | $0.34 | -2.9% | -2.9% | -5.6% | +3.0% | +13.3% | Oct 14, 2026 |
 TentacoolSV: Scarlet & Violet 151 · #072/165 · Reverse Holofoil · English | | $0.28 | -3.4% | -12.5% | +33.3% | +16.7% | +27.3% | Oct 14, 2026 |
| TentacoolSM - Guardians Rising · #23/145 · Normal · English | | $0.23 | 0.0% | +4.5% | +27.8% | +64.3% | +4.5% | Oct 14, 2026 |
 TentacoolSWSH07: Evolving Skies · #026/203 · Reverse Holofoil · English | | $0.22 | 0.0% | +4.8% | -4.3% | -21.4% | +46.7% | Oct 14, 2026 |
| TentacoolXY - Primal Clash · #70/160 · Normal · English | | $0.21 | 0.0% | 0.0% | +5.0% | +16.7% | +40.0% | Oct 14, 2026 |
| TentacoolSM - Team Up · #60/181 · Normal · English | | $0.19 | 0.0% | +5.6% | 0.0% | +11.8% | +35.7% | Oct 14, 2026 |
 TentacoolS5a: Peerless Fighters · #011/070 · Normal · Japanese | | $0.17 | 0.0% | 0.0% | -5.6% | -15.0% | -5.6% | Oct 14, 2026 |
| TentacoolSV: Scarlet & Violet 151 · #072/165 · Normal · English | | $0.16 | 0.0% | -20.0% | 0.0% | -5.9% | +166.7% | Oct 14, 2026 |
| TentacoolSWSH07: Evolving Skies · #026/203 · Normal · English | | $0.13 | 0.0% | 0.0% | -18.8% | +116.7% | +62.5% | Oct 14, 2026 |
