Diablo (004) (U*) UE20BT: That Time I Got Reincarnated as a Slime Uncommon 1-Star Union Arena card — value and price

Diablo (004) (U*)

UE20BT: That Time I Got Reincarnated as a Slime · Uncommon 1-Star
Union Arena una:698321 TCGplayer (daily snapshot, 2026-08-05)
Fair market value
$7.07
Consensus of 1 market price guide. Typical $6.12 – $8.05.
Sources: TCGplayer (daily snapshot, 2026-08-05) · Near Mint, raw
Optimal buy
$6.55
Never pay above $6.84
Optimal sell
$7.46
Never sell below $7.19
Buy this card · aim to pay under $6.84
Find on eBay →TCGplayer →Buy on Amazon →Graded (PSA 10) →

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Selling this card
Optimal sell $7.46 · never below $7.19. Value your copy for the live net-after-fees calculator.
Where to sell
eBay~13.25% + $0.30Largest audience; on any listing use “Sell one like this” to prefill yours.TCGplayer~10–11%Best for singles; buyers expect competitive, data-driven pricing.Whatnot~8% + paymentLive-auction app; strong for breaks, lots, and fast sales.
Shipping & protection supplies
Low value — a sleeve in a plain/bubble mailer is plenty; tracking optional under ~$20.
Penny sleevesBubble mailers
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Common questions
How much is Diablo (004) (U*) worth?

Diablo (004) (U*) from UE20BT: That Time I Got Reincarnated as a Slime has a fair market value of about $7.07 (Near Mint, raw), based on a consensus of current market price guides.

What is the best price to sell Diablo (004) (U*)?

List around $7.46 to clear without leaving money on the table; that nets about $5.09 after fees and shipping.

What should I pay to buy Diablo (004) (U*)?

A disciplined buy target is about $6.55 — a discount to fair value that keeps an edge. Aim not to pay above $6.84.

Where can I buy Diablo (004) (U*)?

Diablo (004) (U*) is sold on eBay, TCGplayer, and Amazon. Compare live listings against the fair value of $7.07 and aim to pay under $6.84 — SplitShot links you straight to current listings at each marketplace.

Is now a good time to buy Diablo (004) (U*)?

Diablo (004) (U*) is trending stable lately. A disciplined entry is under $6.84; paying near or below $6.55 keeps a margin of safety versus the $7.07 fair value.

Estimate for guidance, not an appraisal. Value your exact copy →