Skip to content
Lab TCG

Seaking 21/109

Seaking

EX Ruby and Sapphire • Rare • Reverse Holofoil

All 53 printings from $0.07 →

No sales in the last 7 days

$24.68as of ↑ +$3.03 (+14.0%) this week

We may earn a commission on these links, at no cost to you.

One email when it hits. Free, no account needed.

Selling it? At market it nets about $20.78 on eBay or $21.07 on TCGplayer after fees. Where to sell and the fee calculator →

Sales & Velocity

As of 2026-10-10

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

Sold (7d / 30d)
1 / 7
NM sold between (7d)
—
Cheapest listing
$13.23
Units sold per day, Oct 1–Oct 1 (Near Mint)
Units sold per day, Near Mint
DateUnits soldSold between
Oct 14$28.45–$30.00
ConditionSold 7dSold 30d
Lightly Played00
Moderately Played13
Near Mint04
Damaged00
Heavily Played00

Sales data: TCGplayer

Quick answers

How much is Seaking 21/109 worth?

As of October 10, 2026, Seaking 21/109 from EX Ruby and Sapphire has a TCGplayer market price of $24.68.

Is Seaking 21/109 going up or down in price?

Its TCGplayer market price is up 50.9% over the past 30 days and up 14.0% over the past week, as of October 10, 2026.

Price Snapshot

Market
$24.68
Low
$13.23
Mid
$16.00
High
$348.29
7-Day:+$3.03 (+14.0%)
30-Day:+$8.32 (+50.9%)
2026-10-03
2026-10-10
$24.68$23.92$23.17$22.41$21.65Oct '26
TCG Current
$24.68
Change
+$3.03 | +14.0%
Low
$21.65
High
$24.68

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 pricePriceUsually means
50%$12.34Cash buylist, low end
60%$14.81Cash buylist, typical
70%$17.28Buylist top end, store credit
80%$19.74Bulk lot or quick sale
90%$22.21Quick sale, just under market
100%$24.68Market price
110%$27.15Asking price, room to negotiate
120%$29.62Asking price, room to negotiate
150%$37.02Presale and hype pricing
$

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 card attached to the Defending Pokemon to the other Defending Pokemon. (Ignore this effect if your opponent has only 1 Defending Pokemon.)

Weakness L · Resistance None · Retreat 0

Where to Buy

TCGPlayerRaw$24.68Raw copies, condition graded by the marketplace
Buy Now
eBayRaw listings and graded slabs

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

Protect this card

Code THELAB takes 10% off at BCW
  • Sleeve + toploader combo
    Sleeve first, then the rigid holder. Standard for anything you might sell.
    Shop BCW

We use these ourselves. BCW links are affiliate links; the code works whether or not you click through.

Graded Prices

No graded comps for this card yet. Pull the current PSA/BGS listings from eBay.

Other printings of Seaking

See all 53 printings →
Seaking 014/084, Pitch Black · UncommonBuy on TCGplayer
Seaking 014/084
Pitch Black · Uncommon
$0.10
price history
Seaking 014/084, Pitch Black · UncommonBuy on TCGplayer
Seaking 014/084
Pitch Black · Uncommon
$0.19
price history
Seaking (Master Ball Pattern) 021/131, Prismatic Evolutions · UncommonBuy on TCGplayer
Seaking (Master Ball Pattern) 021/131
Prismatic Evolutions · Uncommon
$3.06
price history
Seaking 021/131, Prismatic Evolutions · UncommonBuy on TCGplayer
Seaking 021/131
Prismatic Evolutions · Uncommon
$0.25
price history
Seaking 021/131, Prismatic Evolutions · UncommonBuy on TCGplayer
Seaking 021/131
Prismatic Evolutions · Uncommon
$0.19
price history
Seaking (Poke Ball Pattern) 021/131, Prismatic Evolutions · UncommonBuy on TCGplayer
Seaking (Poke Ball Pattern) 021/131
Prismatic Evolutions · Uncommon
$0.44
price history
Seaking 045/167, Twilight Masquerade · CommonBuy on TCGplayer
Seaking 045/167
Twilight Masquerade · Common
$0.16
price history
Seaking 045/167, Twilight Masquerade · CommonBuy on TCGplayer
Seaking 045/167
Twilight Masquerade · Common
$0.21
price history
Seaking 119/165, Scarlet & Violet 151 · UncommonBuy on TCGplayer
Seaking 119/165
Scarlet & Violet 151 · Uncommon
$0.26
price history
Seaking 119/165, Scarlet & Violet 151 · UncommonBuy on TCGplayer
Seaking 119/165
Scarlet & Violet 151 · Uncommon
$1.50
price history
Seaking 047/202, Sword & Shield Base Set · UncommonBuy on TCGplayer
Seaking 047/202
Sword & Shield Base Set · Uncommon
$0.52
price history
Seaking 047/202, Sword & Shield Base Set · UncommonBuy on TCGplayer
Seaking 047/202
Sword & Shield Base Set · Uncommon
$0.07
price history

Other cards in EX Ruby and Sapphire

View full set →