# Team Aqua's Secret Base #28/34 — Double Crisis

## Summary

Team Aqua's Secret Base is a Stadium that taxed every non-Aqua Pokémon's retreat, a mean little disruption in a set built around the Aqua and Magma rivalry. It was a mid-tier pull that mostly mattered to Team Aqua decks, so collector demand stays modest and nostalgia-driven. The modelled guide sits at $1.07, up 5% over 30 days on 5 copies traded, with 299 days of inventory on the board; a PSA 10 guides at $39, 36 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 | Double Crisis |
| Number | 28/34 |
| Rarity | Uncommon |
| Era | XY |
| Illustrator | Ryo Ueda |
| Release date | 2015-03-25 |
| Image | Unavailable |

## Card details

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

## Current stats

- Headline price: **$1.07** (ITEM_MEDIAN; modelled guide price) — as of 2026-10-26T23:14:13.809Z
- 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 2026-10-26T23:14:13.809Z
- Floor delivered ask: $2.47 — as of 2026-10-26T23:14:13.809Z
- Quant score: 68/100, regime FLOOR_FORMING — as of 2026-10-26T23:14:13.809Z — 3 of 11 inputs · 29% weight · -35% confidence

## Provenance

- Catalog — observed 2015-03-25T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-15T19:10:32.012Z, confidence 90%
- Guide price (modelled) — observed 2026-10-27T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-10-15T19:10:30.964Z, confidence 90%
- Confirmed sale — observed 2026-10-13T11:36:19.647Z, confidence 85%
- Inventory count — observed 2026-10-15T19:10:30.964Z, confidence 70%
- Population census — observed 2026-09-08T23:04:38.453Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/double-crisis/team-aquas-secret-base-28)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Adc1-28%3AEN%3ANORMAL~NM)