Twilight Slime — Foil Mercurial Heart Super Rare Grand Archive card — value and price

Photo is the marketplace stock image and may show either finish — this value is for the Foil printing.

Twilight Slime — Foil

Mercurial Heart · Super Rare
Grand Archive gra:549941 TCGplayer (daily snapshot, 2026-08-05)
Fair market value
$8.56
Consensus of 1 market price guide. Typical $7.41 – $9.75.
Sources: TCGplayer (daily snapshot, 2026-08-05) · Near Mint, raw
Optimal buy
$7.93
Never pay above $8.28
Optimal sell
$9.03
Never sell below $8.70
Buy this card · aim to pay under $8.28
Find on eBay →TCGplayer →Buy on Amazon →Graded (PSA 10) →

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Selling this card
Optimal sell $9.03 · never below $8.70. 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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More Mercurial Heart →
Common questions
How much is Twilight Slime — Foil worth?

Twilight Slime — Foil from Mercurial Heart has a fair market value of about $8.56 (Near Mint, raw), based on a consensus of current market price guides.

What is the best price to sell Twilight Slime — Foil?

List around $9.03 to clear without leaving money on the table; that nets about $6.46 after fees and shipping.

What should I pay to buy Twilight Slime — Foil?

A disciplined buy target is about $7.93 — a discount to fair value that keeps an edge. Aim not to pay above $8.28.

Where can I buy Twilight Slime — Foil?

Twilight Slime — Foil is sold on eBay, TCGplayer, and Amazon. Compare live listings against the fair value of $8.56 and aim to pay under $8.28 — SplitShot links you straight to current listings at each marketplace.

Is now a good time to buy Twilight Slime — Foil?

Twilight Slime — Foil is trending stable lately. A disciplined entry is under $8.28; paying near or below $7.93 keeps a margin of safety versus the $8.56 fair value.

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