Kaiju No. 8 (055) Union Arena Promotion Cards Union Rare Union Arena card — value and price

Kaiju No. 8 (055)

Union Arena Promotion Cards · Union Rare
Union Arena una:663174 TCGplayer (daily snapshot, 2026-10-06)
Fair market value
$40.39
Consensus of 1 market price guide. Typical $32.41 – $49.56.
▲ 32% · 50d
Sources: TCGplayer (daily snapshot, 2026-10-06) · Near Mint, raw
Optimal buy
$37.25
Never pay above $38.98
Optimal sell
$43.20
Never sell below $41.23
≈ $32.18 in hand after fees & shipping

These are marketplace prices — what a card trades at between collectors on eBay, TCGplayer or Cardmarket. A local shop buying for cash pays well under this, and that isn't a bad offer: they carry the rent, the staff and the risk of stock that may sit for a year. Store credit usually beats their cash price.

Buy this card · aim to pay under $38.98
Buy this card on TCGplayer →Find on eBay →Graded (PSA 10) →Amazon: sealed →
When it arrives: a penny sleeve + toploader is all it takes to keep it Near Mint.
Penny sleevesToploaders

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Selling this card
Optimal sell $43.20 · never below $41.23. 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.
Shipping & protection supplies
Sleeve + toploader in a team bag, taped inside a bubble mailer, shipped with tracking.
Penny sleevesToploadersTeam bagsBubble mailersPainter’s tape

Amazon Business Free to join and gives bulk pricing on sleeves, toploaders and mailers — worth it if you ship cards often.

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Common questions
How much is Kaiju No. 8 (055) worth?

Kaiju No. 8 (055) from Union Arena Promotion Cards has a fair market value of about $40.39 (Near Mint, raw), based on a consensus of current market price guides.

What is the best price to sell Kaiju No. 8 (055)?

List around $43.20 to clear without leaving money on the table; that nets about $32.18 after fees and shipping.

What should I pay to buy Kaiju No. 8 (055)?

A disciplined buy target is about $37.25 — a discount to fair value that keeps an edge. Aim not to pay above $38.98.

Where can I buy Kaiju No. 8 (055)?

Kaiju No. 8 (055) is sold on eBay, TCGplayer, and Amazon. Compare live listings against the fair value of $40.39 and aim to pay under $38.98 — SplitShot links you straight to current listings at each marketplace.

Is now a good time to buy Kaiju No. 8 (055)?

Kaiju No. 8 (055) is trending stable lately. A disciplined entry is under $38.98; paying near or below $37.25 keeps a margin of safety versus the $40.39 fair value.

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