Onix cards
NM market prices for 29 Onix cards across 27 sets, from Base (1999) to Mega Evolution (2025), highest price first.
Highest-priced Onix cards
Onix Southern Islands, 3/18 $64.38 
Brock's Onix Gym Heroes, 21/132 $11.31 
Onix Pokémon TCG Classic - Venusaur, 010/034 $9.97 
Onix McDonald's Collection 2019, 9/12 $9.65 
Onix Aquapolis, 98/147 $8.28 
Onix FireRed & LeafGreen, 42/112 $2.83 
Onix-GX Hidden Fates, 36/68 $2.58 
Brock's Onix Gym Heroes, 69/132 $1.39 Every Onix card we price
| Card | Set | Number | NM market | Printing | Rarity |
|---|---|---|---|---|---|
| Onix | Southern Islands | 3/18 | $64.38 | Normal | |
| Brock's Onix | Gym Heroes | 21/132 | $11.31 | Unlimited | Rare |
| Onix | Pokémon TCG Classic - Venusaur | 010/034 | $9.97 | Holofoil | |
| Onix | McDonald's Collection 2019 | 9/12 | $9.65 | Holofoil | |
| Onix | Aquapolis | 98/147 | $8.28 | Normal | Common |
| Onix | FireRed & LeafGreen | 42/112 | $2.83 | Normal | Uncommon |
| Onix-GX | Hidden Fates | 36/68 | $2.58 | Holofoil | Rare Holo GX |
| Brock's Onix | Gym Heroes | 69/132 | $1.39 | Unlimited | Common |
 Onix | Neo Genesis | 69/111 | $1.22 | Unlimited | Common |
 Onix | Sandstorm | 71/100 | $1.12 | Normal | Common |
 Onix | Base | 56/102 | $0.98 | Unlimited | Common |
 Onix | Base Set 2 | 84/130 | $0.97 | Normal | Common |
 Onix | Unseen Forces | 65/115 | $0.90 | Normal | Common |
 Onix | Plasma Freeze | 61/116 | $0.66 | Normal | Uncommon |
 Onix | Legendary Collection | 84/110 | $0.57 | Normal | Common |
 Onix | HS-Unleashed | 56/95 | $0.49 | Normal | Common |
 Onix | Diamond & Pearl | 92/130 | $0.45 | Normal | Common |
 Onix | Stormfront | 69/100 | $0.44 | Normal | Common |
 Onix | HS-Unleashed | 57/95 | $0.35 | Normal | Common |
 Onix | Lost Thunder | 109/214 | $0.35 | Normal | Common |
 Onix | Celestial Storm | 71/168 | $0.26 | Normal | Common |
 Onix | Evolutions | 61/108 | $0.26 | Normal | Common |
 Onix | Cosmic Eclipse | 105/236 | $0.21 | Normal | Common |
 Onix | 151 | 095/165 | $0.20 | Normal | Uncommon |
 Onix | Unified Minds | 103/236 | $0.18 | Normal | Common |
 Onix | Fusion Strike | 138/264 | $0.17 | Normal | Common |
 Onix | Mega Evolution | 070/132 | $0.15 | Normal | Common |
 Onix | Pokémon GO | 036/078 | $0.14 | Normal | Common |
 Onix | Paradox Rift | 090/182 | $0.09 | Normal | Common |
More cards by Pokémon Pokémon card prices by set
Prices and images from Scrydex. Prices checked . How our card prices work