# Koffing #243/236 — Cosmic Eclipse

## Summary

Koffing is a modest Gen I Poison type, but a secret rare slot gave this Cosmic Eclipse printing a surprising profile. Its Roxie-linked Ability fed the Toxtricity and Roxie decks of the era, and a Hyogonosuke illustration keeps collectors of that style interested. At a $38 modelled guide, down 2% over 30 days on 146 copies traded, with 35 days of inventory on the board, this printing is almost entirely collector premium, since the same card plays for $0.19 out of Journey Together; the slab is the real edge, with PSA 10s at $393 and a 29% observed gem rate putting about $13 of expected profit per submission.

## Identity

| Field | Value |
| --- | --- |
| Set | Cosmic Eclipse |
| Number | 243/236 |
| Rarity | Secret Rare |
| Era | SM |
| Illustrator | HYOGONOSUKE |
| Release date | 2019-11-01 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | Basic |
| HP | 60 |
| Types | Psychic |
| Ability: Blow-Away Bomb | Once during your turn, when you discard this Pokémon with the effect of Roxie, you may put 1 damage counter on each of your opponent’s Pokémon. (Place damage counters after the effect of Roxie.) |
| Attack: Poison Gas | cost Psychic/Colorless — damage 10 — Your opponent’s Active Pokémon is now Poisoned. |
| Weakness | Psychic ×2 |
| Retreat | 1 |
| Legal | Standard no · Expanded yes |
| Pokédex entry | [Koffing #109](https://cardboardalpha.com/pokemon/pokedex/koffing) |
| Finishes | Holo |
| Languages | EN |

## Current stats

- Headline price: **$37.93** (ITEM_MEDIAN; modelled guide price) — as of 2026-10-17T21:45:02.614Z
- Headline basis: MODELLED_GUIDE — The venue’s published daily market guide, which the venue itself declares MODELLED. Nothing is confirmed to have traded at it, no copy is listed at it, and it is not our estimate — it is theirs.
- 24h change: n/a · 7d change: +2.50% — as of 2026-10-17T21:45:02.614Z
- Floor delivered ask: $36.90 — as of 2026-10-17T21:45:02.614Z
- Quant score: 55/100, regime MARKUP — as of 2026-10-17T21:45:02.614Z — 9 of 11 inputs · 90% weight · -5% confidence

## Provenance

- Catalog — observed 2019-11-01T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-18T07:47:34.306Z, confidence 90%
- Guide price (modelled) — observed 2026-10-17T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-10-13T09:56:20.190Z, confidence 90%
- Confirmed sale — observed 2026-10-13T09:41:08.600Z, confidence 85%
- Inventory count — observed 2026-10-13T09:56:20.189Z, confidence 70%
- Population census — observed 2026-10-17T19:58:11.854Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/cosmic-eclipse/koffing-243)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Asm12-243%3AEN%3AHOLO~NM)