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  5. Structure Deck: The Dark Emperor
  6. Caius the Shadow Monarch

Yu-Gi-Oh! · Structure Deck: The Dark Emperor · #SDDE-EN001 · Ultra Rare

Caius the Shadow Monarch

Yu-Gi-Oh! card price for Caius the Shadow Monarch: $18.80 market, from $15.27 at the cheapest listing, Unlimited printing, updated Oct 19, 2026. Full price history since Feb 8, 2024 below.

Market price · Unlimited · Oct 19, 2026
$18.80
0.0% this week · +8.2% in 30 days
Buy on eBay →
1 day0.0%
7 days0.0%
30 days+8.2%
90 days+31.5%
1 year+138.0%
All time+76.2%

Sellers right now

$15.27lowest listing$94.77highest
Market price$18.80
Mid listing$56.72
30-day avg$18.27

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$18.80

One year

$7.7152-week low$18.8052-week high
In the range100%
All-time low$7.71
All-time high$18.80
First priceFeb 8, 2024
Unlimited · market price
$14.03$15.77$17.51$19.25
$18.80
Jul 21Aug 20Sep 19Oct 19
TCGplayer market price · via tcgcsvtcgrate.com

Price story

We have tracked Caius the Shadow Monarch (Unlimited) since February 2024, when it sold for $10.67. Today the market price is $18.80, up 76.2%. Across the past year it went +138%, with a low of $7.71 and a high of $18.80; today it sits near the top of that range. This is the highest market price in our records for this card. The cheapest listing right now is $15.27, and the 30-day average market price is $18.27.

Printings

PrintingMarketLowHigh7d
Unlimited$18.80$15.27$94.770.0%
1st Edition$17.01$14.05$359.78+0.1%

The card in play

ATK2400
DEF1000
Card type
Effect Monster
Attribute
DARK
Monster type
Fiend
Card text

When this card is Tribute Summoned, remove from play 1 card on the field. If it was a DARK Monster Card, inflict 1000 damage to your opponent.

Other printings of Caius the Shadow Monarch

13 more · $8.66 – $933.78
All printings
Caius the Shadow Monarch (UTR) (TU03-EN000), Turbo Pack: Booster Three — Yu-Gi-Oh! card price +1.4% 7d Caius the Shadow Monarch (UTR) Turbo Pack: Booster Three · #TU03-EN000 $933.78 Caius the Shadow Monarch (Quarter Century Secret Rare) (RA03-EN194), Quarter Century Bonanza — Yu-Gi-Oh! card price +0.8% 7d Caius the Shadow Monarch (Quarter Century Secret Rare) Quarter Century Bonanza · #RA03-EN194 $92.92 Caius the Shadow Monarch (Purple) (DL15-EN006), Duelist League Promo — Yu-Gi-Oh! card price 0.0% 7d Caius the Shadow Monarch (Purple) Duelist League Promo · #DL15-EN006 $32.98 Caius the Shadow Monarch (Blue) (DL15-EN006), Duelist League Promo — Yu-Gi-Oh! card price 0.0% 7d Caius the Shadow Monarch (Blue) Duelist League Promo · #DL15-EN006 $18.05 Caius the Shadow Monarch (GLD2-EN033), Gold Series 2009 — Yu-Gi-Oh! card price −1.3% 7d Caius the Shadow Monarch Gold Series 2009 · #GLD2-EN033 $16.69

Also in Structure Deck: The Dark Emperor

most valuable
Full set
Kycoo the Ghost Destroyer (SDDE-EN007), Structure Deck: The Dark Emperor — Yu-Gi-Oh! card price +1.6% 7d Kycoo the Ghost Destroyer Structure Deck: The Dark Emperor · #SDDE-EN007 $3.71 Dimensional Alchemist (SDDE-EN002), Structure Deck: The Dark Emperor — Yu-Gi-Oh! card price 0.0% 7d Dimensional Alchemist Structure Deck: The Dark Emperor · #SDDE-EN002 $3.27 Karma Cut (SDDE-EN034), Structure Deck: The Dark Emperor — Yu-Gi-Oh! card price −51.0% 7d Karma Cut Structure Deck: The Dark Emperor · #SDDE-EN034 $2.82 Return from the Different Dimension (SDDE-EN030), Structure Deck: The Dark Emperor — Yu-Gi-Oh! card price 0.0% 7d Return from the Different Dimension Structure Deck: The Dark Emperor · #SDDE-EN030 $2.68 D.D. Assailant (SDDE-EN017), Structure Deck: The Dark Emperor — Yu-Gi-Oh! card price +0.4% 7d D.D. Assailant Structure Deck: The Dark Emperor · #SDDE-EN017 $2.40