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Caius the Shadow Monarch Structure Deck: The Dark Emperor #SDDE-EN001 Yu-Gi-Oh! card
Ultra Rare

Caius the Shadow Monarch Structure Deck: The Dark Emperor #SDDE-EN001

Card #SDDE-EN001
Market value · ungraded
$15.26
▲ 1.9% · 30d
1st Edition ~$17.60 · Unlimited ~$15.26
Blended from live market data
Confidence medium · estimate, not an appraisal · How we price →
Buy from here
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Caius the Shadow Monarch is a Ultra Rare Yu-Gi-Oh! card from Structure Deck: The Dark Emperor (#SDDE-EN001). Its current blended market value is $15.26 ungraded. Prices update from real market data.

Graded prices

We don't have a graded price for this card yet — there aren't enough verified graded sales to publish one we'd trust. A grade only appears here once enough real sold results back it. See the raw (ungraded) estimate above in the meantime.

What this price is based on

Low confidence

Only 1 sale in the last 90 days.

Median · Raw$13.001 sale
Trimmed mean$13.00outliers removed
Range$13.00 – $13.00lowest to highest sale
Sales rate0.2/mo1 recorded

Recent Raw sales

  • Aug 6, 2026eBay — Caius the Shadow Monarch SDDE-EN001 Structure Deck Yu-Gi-Oh 1st Edition MPMP1st Edition$13.00

From 1 completed sales recorded between Aug 6, 2026 and Aug 6, 2026. Sold prices only — asking prices are never counted.

Grade it or not

Not enough graded evidence yet — 0 graded sales recorded.

✨ Is it worth it?

An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.

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Price history · raw near-mint

14 Jul 202621 Aug 2026
Latest
$15.26
Period high
$15.26
Period low
$13.86
Change
▲ 10.1%
Available to buy nowLive on eBay

Card details

Set
Structure Deck: The Dark Emperor
Number
#SDDE-EN001
Rarity
Ultra Rare
Game
Yu-Gi-Oh!

More from Structure Deck: The Dark Emperor

Karma Cut
#SDDE-EN034 · Common / Short Print
$2.77
Dimensional Alchemist
Dimensional Alchemist
#SDDE-EN002 · Common / Short Print
$2.60
Kycoo the Ghost Destroyer
Kycoo the Ghost Destroyer
#SDDE-EN007 · Common / Short Print
$2.52
Return from the Different Dimension
#SDDE-EN030 · Common / Short Print
$1.52
D.D.R. - Different Dimension Reincarnation
#SDDE-EN018 · Common / Short Print
$1.26
Lightning Vortex
#SDDE-EN026 · Common / Short Print
$1.00
D.D. Dynamite
D.D. Dynamite
#SDDE-EN035 · Common / Short Print
$0.83
Dimensional Fissure
#SDDE-EN028 · Common / Short Print
$0.76
All Structure Deck: The Dark Emperor cards →

Where to buy & check prices

Check recent sold prices
eBay sold

Frequently asked questions

How much is Caius the Shadow Monarch worth?

Caius the Shadow Monarch (Structure Deck: The Dark Emperor #SDDE-EN001) is worth around $15.26 ungraded, based on live Yu-Gi-Oh! market data.

Where can I buy Caius the Shadow Monarch?

You can buy Caius the Shadow Monarch on TCGplayer, Cardmarket and eBay — see the live listings on this page. Always compare against the blended market value first.

What rarity is Caius the Shadow Monarch?

Caius the Shadow Monarch is a Ultra Rare Yu-Gi-Oh! card from the Structure Deck: The Dark Emperor set.

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Citation
Caius the Shadow Monarch (Structure Deck: The Dark Emperor #SDDE-EN001) — Yu-Gi-Oh! market value $15.26. Source: CardTrack, https://cardtrack.com/yugioh/card/structure-deck-the-dark-emperor/caius-the-shadow-monarch-sdde-en001
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<iframe src="https://cardtrack.com/embed/card?id=yugioh-structure-deck-the-dark-emperor-caius-the-shadow-monarch-ultra-rare" width="100%" height="160" style="border:0;max-width:460px" title="Caius the Shadow Monarch price — CardTrack" loading="lazy"></iframe> <p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>