 OnixLegendary Collection · #084/110 · Reverse Holofoil · English | | $160.09 | 0.0% | +4.0% | +7.3% | +20.8% | +60.1% | Oct 14, 2026 |
 OnixAquapolis · #098/147 · Reverse Holofoil · English | | $85.00 | 0.0% | — | 0.0% | — | +13.3% | Oct 14, 2026 |
 OnixVending Machine cards Series 2 (Red) · #— · Normal · Japanese | | $65.95 | 0.0% | — | — | +4.7% | +37.3% | Oct 14, 2026 |
 OnixSouthern Islands · #03/18 · Normal · English | | $62.65 | 0.0% | +1.0% | +7.1% | +22.2% | +68.5% | Oct 14, 2026 |
 OnixEX Unseen Forces · #65/115 · Reverse Holofoil · English | | $41.00 | 0.0% | 0.0% | 0.0% | +24.6% | +43.0% | Oct 14, 2026 |
 OnixEX Team Rocket Returns · #69/109 · Reverse Holofoil · English | | $39.99 | 0.0% | — | 0.0% | 0.0% | -1.3% | Oct 14, 2026 |
 OnixSouthern Island · #— · Normal · Japanese | | $34.77 | 0.0% | +3.2% | +0.6% | +47.6% | +121.2% | Oct 14, 2026 |
 OnixBase Set (Shadowless) · #056/102 · 1st Edition · English | | $28.11 | 0.0% | 0.0% | +2.0% | +18.9% | +42.5% | Oct 14, 2026 |
 OnixEX FireRed & LeafGreen · #42/112 · Reverse Holofoil · English | | $27.78 | 0.0% | 0.0% | +20.8% | +50.7% | +71.5% | Oct 14, 2026 |
 OnixEX Sandstorm · #71/100 · Reverse Holofoil · English | | $22.53 | 0.0% | 0.0% | -4.9% | +21.8% | +89.6% | Oct 14, 2026 |
 Brock's Onix (21)Gym Heroes · #021/132 · 1st Edition · English | | $17.21 | 0.0% | +0.5% | +4.6% | +30.6% | +38.6% | Oct 14, 2026 |
 Onix (Reverse Holofoil)L2: Revival Legends · #030/080 · 1st Edition Holofoil · Japanese | | $17.00 | 0.0% | — | — | — | — | Oct 14, 2026 |
 Brock's OnixCoroCoro Promotional Cards · #— · Normal · Japanese | | $16.00 | 0.0% | — | 0.0% | -5.9% | -11.1% | Oct 14, 2026 |
| Brock's Onix (21)Gym Heroes · #021/132 · Unlimited · English | | $11.08 | -1.9% | +0.2% | +26.5% | +26.6% | +41.3% | Oct 14, 2026 |
 OnixWind from the Sea · #056/087 · Unlimited · Japanese | | $10.93 | 0.0% | — | — | — | +118.6% | Oct 14, 2026 |
 OnixDiamond and Pearl · #92/130 · Reverse Holofoil · English | | $10.00! | 0.0% | 0.0% | 0.0% | 0.0% | +257.1% | Oct 14, 2026 |
 OnixTrading Card Game Classic · #010/034 · Holofoil · English | | $10.00 | 0.0% | -3.4% | -10.6% | +14.5% | +110.5% | Oct 14, 2026 |
 Brock's Onix (LV.30)City Gym Decks · #— · Normal · Japanese | | $9.85 | 0.0% | +6.6% | +6.6% | -17.9% | -28.2% | Oct 14, 2026 |
 Onix - 9/12McDonald's Promos 2019 · #009/012 · Holofoil · English | | $9.73 | 0.0% | 0.0% | -1.2% | +1.4% | +22.5% | Oct 14, 2026 |
| OnixWind from the Sea · #056/087 · 1st Edition · Japanese | | $9.39 | 0.0% | 0.0% | +7.3% | +6.7% | +8.9% | Oct 14, 2026 |
 Brock's Onix (69)Gym Heroes · #069/132 · 1st Edition · English | | $8.28 | 0.0% | +7.4% | +17.1% | +32.9% | +93.9% | Oct 14, 2026 |
| OnixAquapolis · #098/147 · Normal · English | | $8.23 | 0.0% | +3.5% | +5.0% | +16.1% | +57.4% | Oct 14, 2026 |
| No imageOnix (Master Ball Pattern)SV2a: Pokemon Card 151 · #095/165 · Holofoil · Japanese | | $7.68 | 0.0% | 0.0% | -0.9% | +7.4% | +110.4% | Oct 14, 2026 |
 OnixPokemon TCG Classic: Venusaur · #010/032 · Holofoil · Japanese | | $6.53 | 0.0% | +1.6% | +1.7% | +15.2% | +36.3% | Oct 14, 2026 |
 OnixFlight of Legends · #061/082 · Unlimited · Japanese | | $5.99 | 0.0% | — | — | — | — | Oct 14, 2026 |
 Onix GXsmK: Trainer Battle Decks · #011/031 · Holofoil · Japanese | | $5.95 | 0.0% | — | 0.0% | +2.8% | +8.2% | Oct 14, 2026 |
 OnixGolden Sky, Silvery Ocean · #069/106 · 1st Edition · Japanese | | $5.00 | — | — | — | — | — | Oct 14, 2026 |
 OnixL2: Steelix Constructed Standard Deck · #005/019 · 1st Edition · Japanese | | $5.00 | 0.0% | — | — | — | — | Oct 14, 2026 |
 OnixRocket Gang Strikes Back · #046/084 · Unlimited · Japanese | | $4.99 | 0.0% | — | — | — | 0.0% | Oct 14, 2026 |
 Onix (56)Unleashed · #56/95 · Reverse Holofoil · English | | $4.82 | 0.0% | 0.0% | -13.2% | — | +7.3% | Oct 14, 2026 |
 Onix - 2006 (Hiroki Yano)World Championship Decks · #69/109 · Normal · English | | $4.70 | 0.0% | — | — | — | +17.8% | Oct 14, 2026 |
| OnixBase Set (Shadowless) · #056/102 · Unlimited · English | | $4.12 | 0.0% | +1.5% | -8.2% | +6.2% | +83.9% | Oct 14, 2026 |
 OnixIntense Fight in the Destroyed Sky · #053/092 · 1st Edition · Japanese | | $4.00! | — | — | — | — | — | Oct 14, 2026 |
 OnixL2: Revival Legends · #030/080 · 1st Edition · Japanese | | $3.99 | 0.0% | — | — | 0.0% | — | Oct 14, 2026 |
 OnixNeo Genesis · #069/111 · 1st Edition · English | | $3.48 | 0.0% | +1.2% | +3.0% | +27.5% | +44.4% | Oct 14, 2026 |
 Brock's Onix (LV.41)City Gym Decks · #— · Normal · Japanese | | $3.33 | 0.0% | 0.0% | -2.3% | -7.2% | -35.7% | Oct 14, 2026 |
 OnixBW8: Spiral Force · #030/051 · 1st Edition · Japanese | | $3.00 | 0.0% | — | — | — | — | Oct 14, 2026 |
 OnixPlasma Freeze · #61/116 · Reverse Holofoil · English | | $2.91 | 0.0% | 0.0% | 0.0% | +8.2% | -14.2% | Oct 14, 2026 |
 OnixSM - Lost Thunder · #109/214 · Reverse Holofoil · English | | $2.84 | 0.0% | +1.4% | +10.5% | +51.9% | +215.6% | Oct 14, 2026 |
| OnixEX FireRed & LeafGreen · #42/112 · Normal · English | | $2.83 | 0.0% | 0.0% | +4.0% | +4.0% | +8.4% | Oct 14, 2026 |
 Onix GXHidden Fates · #36/68 · Holofoil · English | | $2.59 | -2.3% | -2.6% | -1.5% | -11.6% | +11.6% | Oct 14, 2026 |
 Onix (57)Unleashed · #57/95 · Reverse Holofoil · English | | $2.19 | 0.0% | — | 0.0% | +40.4% | +58.7% | Oct 14, 2026 |
| OnixGolden Sky, Silvery Ocean · #069/106 · Unlimited · Japanese | | $2.00 | 0.0% | — | — | — | — | Oct 14, 2026 |
 OnixStormfront · #69/100 · Reverse Holofoil · English | | $1.85 | 0.0% | — | — | 0.0% | +7.6% | Oct 14, 2026 |
| Brock's Onix (69)Gym Heroes · #069/132 · Unlimited · English | | $1.62 | +2.5% | -4.1% | +11.0% | -10.0% | +58.8% | Oct 14, 2026 |
 OnixGold, Silver, to a New World... · #— · Normal · Japanese | | $1.36 | 0.0% | 0.0% | +0.7% | -2.9% | +2.3% | Oct 14, 2026 |
 OnixSV: Scarlet & Violet 151 · #095/165 · Reverse Holofoil · English | | $1.34 | 0.0% | -5.0% | -13.0% | -4.3% | -10.1% | Oct 14, 2026 |
 OnixSM7a: Thunderclap Spark · #034/060 · Normal · Japanese | | $1.30 | 0.0% | +27.5% | +27.5% | +18.2% | +42.9% | Oct 14, 2026 |
