# Seaking #21/109 — Ruby & Sapphire

## Summary

Seaking is a Kantō Water evolution with a modest but steady following, remembered more as a Goldeen payoff than a headliner. A Rare in the first Ruby & Sapphire set was a mid-tier pull, and Hajime Kusajima's work belongs to that early EX-era look collectors keep coming back to. At a $1.06 modelled guide, flat over 30 days on 9 copies traded, with 284 days of inventory on the board, 88% of this printing’s price is collector premium, since the same card plays for $0.13 out of Twilight Masquerade; PSA does not split this card’s population by finish, so no gem rate can be read for it.

## Identity

| Field | Value |
| --- | --- |
| Set | Ruby & Sapphire |
| Number | 21/109 |
| Rarity | Rare |
| Era | EX |
| Illustrator | Hajime Kusajima |
| Release date | 2003-07-01 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | Stage1 |
| Evolves from | Goldeen |
| HP | 70 |
| Types | Water |
| Attack: Water Arrow | cost Water — Choose 1 of your opponent's Pokémon. This attack does 20 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) |
| Attack: Fast Stream | cost Colorless/Colorless — damage 30 — Move 1 Energy card attached to the Defending Pokémon to the other Defending Pokémon. (Ignore this effect if your opponent has only 1 Defending Pokémon.) |
| Weakness | Lightning ×2 |
| Retreat | 0 |
| Legal | Standard no · Expanded no |
| Pokédex entry | [Seaking #119](https://cardboardalpha.com/pokemon/pokedex/seaking) |
| Finishes | Normal, Reverse Holo |
| Languages | EN |

## Current stats

- Headline price: **$1.06** (ITEM_MEDIAN; modelled guide price) — as of 2026-10-24T22:34:37.023Z
- 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 2026-10-24T22:34:37.023Z
- Floor delivered ask: $2.25 — as of 2026-10-24T22:34:37.023Z
- Quant score: 54/100, regime FLOOR_FORMING — as of 2026-10-24T22:34:37.023Z — 4 of 11 inputs · 38% weight · -31% confidence

## Provenance

- Catalog — observed 2003-07-01T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-23T01:41:55.160Z, confidence 90%
- Guide price (modelled) — observed 2026-10-24T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-10-23T01:41:52.993Z, confidence 90%
- Confirmed sale — observed 2026-10-22T01:48:35.130Z, confidence 85%
- Inventory count — observed 2026-10-23T01:41:52.993Z, confidence 70%
- Population census — observed 2026-09-14T00:14:30.571Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/ruby-sapphire/seaking-21)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Aex1-21%3AEN%3ANORMAL~NM)