# Yanmega BREAK #8/114 — Steam Siege

## Summary

Yanmega BREAK was an ultra rare pull in Steam Siege, so a chase slot by rarity, and its attack ignoring Weakness and Resistance gave it a niche, memorable trick in the XY era. Sinnoh fans who love the big Bug-type dragonfly keep demand steady. The modelled guide sits at $2.92, flat over 30 days on 60 copies traded, with 164 days of inventory on the board; the slab is the real edge, with PSA 10s at $204 and a 51% observed gem rate putting about $16 of expected profit per submission.

## Identity

| Field | Value |
| --- | --- |
| Set | Steam Siege |
| Number | 8/114 |
| Rarity | Ultra Rare |
| Era | XY |
| Illustrator | 5ban Graphics |
| Release date | 2016-08-03 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | BREAK |
| Evolves from | Yanmega |
| HP | 140 |
| Types | Grass |
| Attack: Barrier Break | cost Colorless/Colorless/Colorless — damage 100 — This attack's damage isn't affected by Weakness, Resistance, or any other effects on your opponent's Active Pokémon. |
| Retreat | 0 |
| Legal | Standard no · Expanded yes |
| Pokédex entry | [Yanmega #469](https://cardboardalpha.com/pokemon/pokedex/yanmega) |
| Finishes | Holo |
| Languages | EN |

## Current stats

- Headline price: **$2.92** (ITEM_MEDIAN; modelled guide price) — as of 2026-11-01T12:37:43.960Z
- 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: n/a — as of 2026-11-01T12:37:43.960Z
- Floor delivered ask: $3.35 — as of 2026-11-01T12:37:43.960Z
- Quant score: 45/100, regime FLOOR_FORMING — as of 2026-11-01T12:37:43.960Z — 6 of 11 inputs · 51% weight · -25% confidence

## Provenance

- Catalog — observed 2016-08-03T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-24T21:28:13.329Z, confidence 90%
- Guide price (modelled) — observed 2026-11-01T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-10-24T21:28:11.942Z, confidence 90%
- Confirmed sale — observed 2026-10-24T06:42:17.327Z, confidence 85%
- Inventory count — observed 2026-10-24T21:28:11.942Z, confidence 70%
- Population census — observed 2026-10-13T09:59:00.412Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/steam-siege/yanmega-break-8)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Axy11-8%3AEN%3AHOLO~NM)