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Caius the Mega Monarch
Yu-Gi-Oh · Ultra Rare

Caius the Mega Monarch

SECE-EN035Secrets of Eternity
$6.21
-$0.07-1.1% · 30D
Aggregated from verified sold data · eBay, TCGplayer & PriceCharting
Where these prices come from

Yu-Gi-Oh prices on TCGIndex are TCGplayer market prices (the US market), in US dollars, with graded and sold prices from PriceCharting and eBay. Another currency is a conversion from USD at the day's rate, not a European market price. We do not use Cardmarket or Cardtrader prices for Yu-Gi-Oh.

Market Health
Excellent
Strong demand
Confidence
87/100
High reliability
Liquidity
Medium
Moderate activity
Sales Volume
31 / yr
Sold per year, updated 1h ago
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Before the price moves

We find the Yu-Gi-Oh cards about to rise.

Every night the model scores every Yu-Gi-Oh! card on the market. Every morning at 07:30 UTC it publishes the one most likely to gain 10% within 30 days, with its entry price and the reasons, then scores it in public.

Hit +10%
53%
Average return, day 30
+16.8%
Picks scored
145

Last 90 days, live picks only, losses included.

Picked before they moved
Assault Blackwing - Kusanagi the Gathering Storm (Starlight Rare)
+232.5%
Assault Blackwing - Kusanagi the Gathering Storm (Starlight Rare)
$11.87 → $39.47
Superdreadnought Rail Cannon Gustav Rocket (Starlight Rare)
+127.7%
Superdreadnought Rail Cannon Gustav Rocket (Starlight Rare)
$14.84 → $33.79
Mulcharmy Meowls
+98.7%
Mulcharmy Meowls
$10.17 → $20.21
See today’s Yu-Gi-Oh! pick

Published this morning, public in 14 days. Full record

Price & Volume
Market price Sales volume
Jul 2026 – today
Sales & Liquidity
Market Price$6.21
7-Day Change+0.0%
90-Day Change+2.0%
LiquidityMedium
Market TrendStable
Price by Grade
BGS 10$137·
PSA 10$105·
SGC 10$63·
CGC 10$42·
PSA 9$20·
Raw· 31 sales$6·
Price by Condition · 8
Anchored to market price · condition spread from TCGplayer
Near Mint
1st Edition · English
$6.21
+0.0%
Near Mint
Unlimited · English
$5.80
+6.0%
Lightly Played
1st Edition · English
$2.72
+0.4%
Lightly Played
Unlimited · English
$4.44
+4.9%
Moderately Played
1st Edition · English
$1.17
-67.8%
Moderately Played
Unlimited · English
$5.43
+0.0%
Heavily Played
1st Edition · English
$4.55
+0.0%
Damaged
1st Edition · English
$1.09
+0.0%

Caius the Mega Monarch price history

Near Mint market price on the dates below, from TCGIndex's daily record (66 days tracked). High $8.10 on Jan 2026, low $6.17 on Jul 2026.

WhenPricevs today
Today$6.29
7 days ago$6.29+0.0%
30 days ago$6.36-1.1%
90 days ago$6.17+1.9%
6 months ago$6.44-2.3%
MonthMonth-end price
Jan 2026$8.10
Feb 2026$8.06
Mar 2026$7.83
Apr 2026$6.57
May 2026$6.60
Jun 2026$6.51
Jul 2026$6.17
Aug 2026$6.37
Sep 2026$6.39
Oct 2026$6.31
Nov 2026$6.29

Caius the Mega Monarch PSA 10 price and graded values

What Caius the Mega Monarch (Secrets of Eternity) sells for by grade, from verified sold listings. A PSA 10 sells for $105.43 against $6.21 raw, a 17x grading premium. PSA 9 copies trade around $19.99.

GradeMarket price
Raw (ungraded)$6.21
PSA 9$19.99
CGC 10$42.00
SGC 10$63.00
PSA 10$105.43
BGS 10$137.00

Graded prices: PriceCharting sold data, refreshed daily. Grading costs, turnaround and the odds of a 10 decide whether the premium is worth chasing. Most valuable Yu-Gi-Oh PSA 10 cards

Caius the Mega Monarch FAQ

How much is Caius the Mega Monarch worth right now?
Caius the Mega Monarch from Secrets of Eternity is trading around $6.21 raw (ungraded) on the secondary market, and around $105.43 as a PSA 10. TCGIndex refreshes this price every day.
How much is Caius the Mega Monarch PSA 10 worth?
A PSA 10 Caius the Mega Monarch sells for around $105.43, a PSA 9 around $19.99, against $6.21 for a raw copy. These are market prices from verified sold listings, updated daily.
Is Caius the Mega Monarch worth grading?
A PSA 10 Caius the Mega Monarch is worth about 17 times the raw price ($105.43 vs $6.21). Grading pays off when the gap covers the grading fee and the risk of a 9 ($19.99): at $6.21 raw the grading fee costs more than the card itself, so it pays only for a copy you expect to come back a 10.
Is Caius the Mega Monarch going up or down?
Caius the Mega Monarch is down 1.1% over 30 days, unchanged over 7 days. The full price history is on this page.
Is Caius the Mega Monarch a good investment?
TCGIndex doesn't give financial advice, but here's the data worth knowing: it sits around $6.21, down 1.1% over the last 30 days, with medium volatility. Prices can move fast, so look at the trend and your own timeframe before you buy. TCGIndex publishes one Yu-Gi-Oh pick every morning; each pick becomes public 14 days later and is scored at day 30.

Other printings of Caius the Mega Monarch

Caius the Mega Monarch has 2 other priced printings, from $0.64 to $4.50. Cheapest first.

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