Thunder Mountain Prism Star.
updated Aug 13, 2026
Price history and graded value
Grading odds
PSA has graded 49 copies. Where they landed:
1 of the 4 grades priced above had no sales at that grade, so the figure is modelled from the grades that did rather than observed.
Weighting every grade by how often this card actually comes back at it, a submission is worth $12.76 on average. The card plus the $25 fee costs $26.79, so grading loses $14.03 on an average submission. Only 14.3% of copies reach a 10, which is why the top price is the wrong number to plan around.
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The same card in other sets
What moves the price of this card
The Thunder Mountain Prism Star on this page is the Holofoil printing from SM - Lost Thunder, and it trades at $1.78 in near mint condition. Only one printing of this card was produced, so there is no cheaper version to confuse it with.
Condition does most of the work below the surface. A copy with soft corners or a print line off centre trades well under the market price shown here, and a copy clean enough to grade trades well above it, which is why the PSA 10 sits at $60.00. Before you value your own copy, look at the corners under a light and check the centring on the back, where most cards give themselves away.