Pokémon · Single card
Koffing
Evolutions · XY
Number
50/108
Rarity
Uncommon
HitBinder Price
~£0.18
Firm · ungraded
PSA 10
~£37.51
graded · Low
Price by condition
NM
£0.18
LP
£0.18
MP
£0.13
HP
£0.13
DM
£0.05
NM is the HitBinder Price; the rest use real per-condition ratios from our price archive.
Price history
▲ 50.0%— — PSA 10 shown on its own scale (a slab often trades many times raw).
Grade analysis
66 graded by PSA · 15.2% gem rate
PSA 10 uplift
208.4×
Gem rate
15.2%
Net if it 10s
£12.3
Population and per-grade prices from our price archive · printing: normal. “Net if it 10s” assumes a ~£25 grading cost and is not a guarantee — the gem rate is the odds it actually grades a 10.
PSA 10 by printing
Vintage printings grade very differently — check which one you hold.
| Printing | PSA 10 | Pop | Gem rate |
|---|---|---|---|
| Reverse Holo | ~£138.13 | 39 | 12.2% |
| Normal | ~£37.51 | 10 | 15.2% |
The HitBinder Price is our trust-weighted estimate (archive blend), shown in your chosen display currency (switch it top-right); PSA 10 reflects recent graded sales. Indicative, not quotes — condition, grading and printing variance apply.
Live on eBay
Price trend
▲ 12.5% · 12 wksCard details
Foul Gas
10Flip a coin. If heads, your opponent's Active Pokémon is now Poisoned. If tails, your opponent's Active Pokémon is now Confused.
Its thin, balloon-like body is inflated by horribly toxic gases. It reeks when it is nearby.
Illustrated by Mitsuhiro Arita
Evolutions
XY · 113 cards · 2016-11-02
Card analytics
Market snapshotSupply & demand
No members selling or wanting this yet.
Share of set value
£0.18 of £851.71 across the whole set.
Value rank in set
Ahead of 63 priced cards in the set.
Price stats
12 weekly snapshotsLow
£0.16
Average
£0.16
High
£0.18
Members selling this
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