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Caius the Mega Monarch Secrets of Eternity #SECE-EN035 Yu-Gi-Oh! card
Ultra Rare

Caius the Mega Monarch Secrets of Eternity #SECE-EN035

Card #SECE-EN035
Market value · ungraded
$5.39
▲ 1.8% · 30d
1st Edition ~$6.28 · Unlimited ~$5.39
PSA 10
$46
9× raw
Blended from live market data · graded from real sold data
Confidence medium · estimate, not an appraisal · How we price →
Buy from here
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Caius the Mega Monarch is a Ultra Rare Yu-Gi-Oh! card from Secrets of Eternity (#SECE-EN035). Its current blended market value is $5.39 ungraded, with a PSA 10 worth around $46. Prices update from real market data.

Graded prices
Ungraded (raw)$5.39
PSA graded price estimates by grade
GradeRelative valuePrice
PSA 10$46$46–$46
PSA 9$31$31–$31
“Sold” = median of real recent sold listings at that grade (eBay or Fanatics Collect — hover a badge to see which). Other figures are blended marketplace estimates. Confidence reflects source backing and price spread — not PSA-official values.

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Price history · Raw

1 Oct 202121 Aug 2026
Latest
$5.39
Period high
$7.29
Period low
$3.85
Change
▲ 36.5%
Available to buy nowLive on eBay

Card details

Set
Secrets of Eternity
Number
#SECE-EN035
Rarity
Ultra Rare
Game
Yu-Gi-Oh!

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All Secrets of Eternity cards →

Where to buy & check prices

Check recent sold prices
eBay sold

Frequently asked questions

How much is Caius the Mega Monarch worth?

Caius the Mega Monarch (Secrets of Eternity #SECE-EN035) is worth around $5.39 ungraded, or about $46 in PSA 10, based on live Yu-Gi-Oh! market data.

What is a PSA 10 Caius the Mega Monarch worth?

A PSA 10 Caius the Mega Monarch sells for around $46, roughly 9× the ungraded price.

Where can I buy Caius the Mega Monarch?

You can buy Caius the Mega 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 Mega Monarch?

Caius the Mega Monarch is a Ultra Rare Yu-Gi-Oh! card from the Secrets of Eternity set.

Cite & embed this card

Free to use with attribution to CardTrack.

Citation
Caius the Mega Monarch (Secrets of Eternity #SECE-EN035) — Yu-Gi-Oh! market value $5.39, PSA 10 $46.00. Source: CardTrack, https://cardtrack.com/yugioh/card/secrets-of-eternity/caius-the-mega-monarch-sece-en035
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<iframe src="https://cardtrack.com/embed/card?id=yugioh-secrets-of-eternity-caius-the-mega-monarch-ultra-rare" width="100%" height="160" style="border:0;max-width:460px" title="Caius the Mega Monarch price — CardTrack" loading="lazy"></iframe> <p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>