# Mary's Impulse #142/165 — Expedition Base Set

## Summary

Mary's Impulse is a coin-flip Supporter that rewarded lucky streaks but never earned a regular slot in serious lists. Ken Sugimori's name on a Trainer is the real draw, while the uncommon rarity kept it a fair mid-tier pull that has never been scarce. The modelled guide sits at $1.87, down 12% over 30 days on 5 copies traded, with 1,788 days of inventory sitting on the board; PSA does not split this card’s population by finish, so no gem rate can be read for it, with original packs long past any pull-rate math.

## Identity

| Field | Value |
| --- | --- |
| Set | Expedition Base Set |
| Number | 142/165 |
| Rarity | Uncommon |
| Era | WOTC |
| Illustrator | Ken Sugimori |
| Release date | 2002-09-15 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | TRAINER |
| Subtype | Supporter |
| Types | Darkness |
| Legal | Standard no · Expanded no |
| Finishes | Normal, Reverse Holo |
| Languages | EN |

## Current stats

- Headline price: **$1.87** (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: $2.49 — as of 2026-11-01T12:37:43.960Z
- Quant score: 8/100, regime ILLIQUID_UNKNOWN — as of 2026-11-01T12:37:43.960Z — 4 of 11 inputs · 38% weight · -31% confidence

## Provenance

- Catalog — observed 2002-09-15T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-23T00:56:16.101Z, confidence 90%
- Guide price (modelled) — observed 2026-11-01T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-10-23T00:56:14.611Z, confidence 90%
- Confirmed sale — observed 2026-10-22T05:05:53.020Z, confidence 85%
- Inventory count — observed 2026-10-23T00:56:14.610Z, confidence 70%
- Population census — observed 2026-09-14T03:32:00.665Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/expedition-base-set/marys-impulse-142)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Aecard1-142%3AEN%3ANORMAL~NM)