Seaking 21

EX Battle Stadium • Rare • Normal

All 56 printings from $0.07 →

No sales in the last 7 days

$0.77as of Oct 31, 2026↑ $0.00 (+0.0%) this week

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Sales & Velocity

As of 2026-10-30

Thin market: fewer than 5 sales in the last 7 days

Sold (7d / 30d)

1 / 2

NM sold between (7d)

—

Cheapest listing

$0.29

Units sold per day, Sep 13–Sep 13 (Near Mint)

Units sold per day, Near Mint
Date	Units sold	Sold between
Sep 13	1	$0.62–$0.62

Condition	Sold 7d	Sold 30d
Heavily Played	0	0
Lightly Played	1	2
Moderately Played	0	0
Near Mint	0	0
Damaged	0	0

Sales data: TCGplayer

Quick answers

How much is Seaking 21 worth?

As of October 31, 2026, Seaking 21 from EX Battle Stadium has a TCGplayer market price of $0.77.

Is Seaking 21 going up or down in price?

Its TCGplayer market price is up 4.1% over the past 30 days and flat over the past week, as of October 31, 2026.

How can I track the price of Seaking 21?

Set a free price alert on this page: enter your email and a target price, and The Lab TCG emails you when the TCGplayer market price falls to it. Prices are checked every night, and no account is needed.

Price Snapshot

Market

$0.77

Low

$0.29

Mid

$0.64

High

$19.68

7-Day:$0.00 (+0.0%)

30-Day:+$0.03 (+4.1%)

Percent of Market

Buying? See what a price is as a share of market. Selling? Start at market and read down to a buylist offer or up to an asking price.

% of Market price	Price	Usually means
50%	$0.39	Cash buylist, low end
60%	$0.46	Cash buylist, typical
70%	$0.54	Buylist top end, store credit
80%	$0.62	Bulk lot or quick sale
90%	$0.69	Quick sale, just under market
100%	$0.77	Market price
110%	$0.85	Asking price, room to negotiate
120%	$0.92	Asking price, room to negotiate
150%	$1.16	Presale and hype pricing

Your price (USD)

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Type what you are being asked to pay, or what you plan to list at.

Market price is the TCGplayer market price. TCGplayer Low is the lowest listed near-mint price at the last snapshot. Definitions

Card text

Stage 1 Pokémon · 70 HP · Water

WWater Arrow
Choose 1 of your opponent's Pokemon. This attack does 20 damage to that Pokemon. (Don't apply Weakness and Resistance for Benched Pokemon.)
2Fast Stream30
Move 1 Energy attached to the Defending Pokemon to the other Defending Pokemon. (Ignore this effect if your opponent has only 1 Defending Pokemon.)

Weakness Lx2 · Resistance None · Retreat 1

Where to Buy

TCGPlayerRaw$0.77Raw copies, condition graded by the marketplace

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eBayRaw listings

Raw listings

TCGplayer for raw copies (condition is graded by the marketplace, not the seller). eBay for more listings. Links may earn us a commission at no cost to you.