# Energy Exchanger #73/90 — Undaunted

## Summary

Energy Exchanger is an Item that swaps a card in hand for a different Energy from the deck, a small smoothing tool of the HGSS era that decks reached for when they needed the right type at the right moment. As an uncommon utility Trainer, it sits in the quiet, low-demand tier. A $0.32 modelled guide, down 3% over 30 days on 5 copies traded, says bulk, with 50 days of inventory on the board, and the economics stop there: a PSA 10 guides at $42, 130 times raw, but PSA does not split this card’s population by finish, so no gem rate can be read for it.

## Identity

| Field | Value |
| --- | --- |
| Set | Undaunted |
| Number | 73/90 |
| Rarity | Uncommon |
| Era | HGSS |
| Illustrator | Ryo Ueda |
| Release date | 2010-08-18 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | TRAINER |
| Subtype | Item |
| HP | 0 |
| Retreat | 0 |
| Legal | Standard no · Expanded no |
| Finishes | Normal, Reverse Holo |
| Languages | EN |

## Current stats

- Headline price: **$0.32** (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: 0.00% — as of 2026-10-17T21:45:02.614Z
- Floor delivered ask: $1.31 — as of 2026-10-16T21:41:43.326Z
- Quant score: 32/100, regime ILLIQUID_UNKNOWN — as of 2026-10-17T21:45:02.614Z — 5 of 11 inputs · 55% weight · -22% confidence

## Provenance

- Catalog — observed 2010-08-18T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-17T01:29:10.083Z, confidence 90%
- Price statistic — observed 2026-10-17T01:29:10.083Z, confidence 90%
- Confirmed sale — observed 2026-10-15T04:25:40.717Z, confidence 85%
- Inventory count — observed 2026-10-17T01:29:10.083Z, confidence 70%
- Guide price (modelled) — observed 2026-10-17T00:00:00.000Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/undaunted/energy-exchanger-73)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Ahgss3-73%3AEN%3ANORMAL~NM)