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  5. Speed Duel: Streets of Battle City
  6. Fortress Whale's Oath

Yu-Gi-Oh! · Speed Duel: Streets of Battle City · #SBC1-ENC17 · Common

Fortress Whale's Oath

Yu-Gi-Oh! card price for Fortress Whale's Oath: $0.37 market, from $0.14 at the cheapest listing, 1st Edition printing, updated Oct 20, 2026. Full price history since Feb 8, 2024 below.

Market price · 1st Edition · Oct 20, 2026
$0.37
−5.1% this week · −9.8% in 30 days
Buy on eBay →
1 day0.0%
7 days−5.1%
30 days−9.8%
90 days0.0%
1 year+68.2%
All time+85.0%

Sellers right now

$0.14lowest listing$19.75highest
Market price$0.37
Mid listing$0.36
30-day avg$0.41

Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.

Where to buy

TCGplayer$0.37

One year

$0.2252-week low$0.4252-week high
In the range75%
All-time low$0.15
All-time high$0.42
First priceFeb 8, 2024
1st Edition · market price
$0.30$0.35$0.39$0.43
$0.37
Jul 22Aug 21Sep 20Oct 20
TCGplayer market price · via tcgcsvtcgrate.com

Price story

We have tracked Fortress Whale's Oath since February 2024, when it sold for $0.20. Today the market price is $0.37, up 85.0%. Across the past year it went +68.2%, with a low of $0.22 and a high of $0.42; today it sits in the middle of that range. The highest price we have recorded is $0.42, 13.5% above today. Listings currently start at $0.14; over the last 30 days the market price averaged $0.41.

Printings

PrintingMarketLowHigh7d
1st Edition$0.37$0.14$19.75−5.1%

The card in play

Card type
Ritual Spell
Attribute
SPELL
Card text

This card is used to Ritual Summon "Fortress Whale". You must also Tribute monsters from your hand or field whose total Levels equal 7 or more.

Other printings of Fortress Whale's Oath

2 more · $0.14 – $0.62
All printings
Fortress Whale's Oath (TP7-EN011), Tournament Pack 7 — Yu-Gi-Oh! card price −3.1% 7d Fortress Whale's Oath Tournament Pack 7 · #TP7-EN011 $0.62 Fortress Whale's Oath (SBSC-EN016), Speed Duel: Scars of Battle — Yu-Gi-Oh! card price 0.0% 7d Fortress Whale's Oath Speed Duel: Scars of Battle · #SBSC-EN016 $0.14

Also in Speed Duel: Streets of Battle City

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Full set
Dark Magician Girl (Secret Rare) (SBC1-ENA05), Speed Duel: Streets of Battle City — Yu-Gi-Oh! card price 0.0% 7d Dark Magician Girl (Secret Rare) Speed Duel: Streets of Battle City · #SBC1-ENA05 $19.85 Dark Magician (A) (Secret Rare) (SBC1-ENA01), Speed Duel: Streets of Battle City — Yu-Gi-Oh! card price +0.4% 7d Dark Magician (A) (Secret Rare) Speed Duel: Streets of Battle City · #SBC1-ENA01 $17.18 Dust Tornado (Secret Rare) (SBC1-END19), Speed Duel: Streets of Battle City — Yu-Gi-Oh! card price −1.5% 7d Dust Tornado (Secret Rare) Speed Duel: Streets of Battle City · #SBC1-END19 $16.85 Red-Eyes Black Dragon (Secret Rare) (SBC1-ENF01), Speed Duel: Streets of Battle City — Yu-Gi-Oh! card price 0.0% 7d Red-Eyes Black Dragon (Secret Rare) Speed Duel: Streets of Battle City · #SBC1-ENF01 $13.13 Flame Swordsman (Secret Rare) (SBC1-ENB22), Speed Duel: Streets of Battle City — Yu-Gi-Oh! card price −0.2% 7d Flame Swordsman (Secret Rare) Speed Duel: Streets of Battle City · #SBC1-ENB22 $8.84