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Porygon-Z #BW84, Plasma Blast Prerelease, BW Black Star Promos

  • Card number: #BW84
  • Rarity: Common
  • Finish: Holo

A PSA 8 Porygon-Z #BW84 Plasma Blast Prerelease from BW Black Star Promos has a TCGBerg fair value of $139 as of Nov 15, 2026. It rests on 13 recorded sales, the latest on Oct 10, 2026. PSA has graded 32 copies at PSA 8. Sales evidence is limited, so treat this value as a rough estimate.

TCGBerg fair valuePSA 8
As of Nov 15, 2026
$139up 36.5%30-day change

TCGBerg Algorithm (estimated from recorded sales).

13 sales · latest Oct 10, 2026

Fair value3 months
Last sale$60Oct 10, 202656.8% below fair
5-sale avg$114Jun 7Oct 10
Population · PSA 8
32
Market cap
$4.5K
Volatility
10.9%
YTD
↑ 304.7%
Sales evidence
Limited

TCGBerg fair value · PSA 8

$139

30D36.5%YTD304.7%
Sales evidenceLimited

Based on 13 recorded sales. Latest sale: Oct 10, 2026.

Market cap
$4.5K
fair value x population
Population
32
graded copies
Last sale
$60
-56.8% vs fair
5-sale avg
$114
recent sales
GradingSell

Price history

Open terminalPro

Weekly fair value for PSA 8.

Open in TerminalCandles, every grade, full historyPro

What the evidence says

The last PSA 8 sale, $60 on Oct 10, 2026, sits 56.8% below the $139 fair value. The value rests on 13 recorded PSA 8 sales. The latest sale ran below the recent run: the last 5 PSA 8 sales averaged $114, within 18.2% of the value. Its confidence band runs from $120 to $159. A PSA 10 ($324) is worth 1.7 times a PSA 9 ($194). Over the past 30 days the PSA 8 value has risen 36.5%. With limited sales evidence, read the gap and the band as rough guides.

TCGBerg fair value by grade

Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.

Behind the scenes

What goes into this price, and how much we know.

Recent sales

19 tracked

Each sale against the grade's fair value on the day it sold.

  • $246
    Nov 2, 2026 · via eBay
    PSA9above fair value by 26.5%
  • $60
    Oct 10, 2026 · via eBay
    PSA8below fair value by 39.3%
  • $75
    Oct 3, 2026 · via eBay
    PSA7above fair value by 6.2%
  • $199
    Sep 24, 2026 · via eBay
    PSA8above fair value by 75.3%
  • $169
    Sep 21, 2026 · via eBay
    PSA8above fair value by 48.9%

14 more sales with Pro

Up to 20 recent sales, each with its venue and its gap to fair value.

Includes a sale 8.8% below fair value

All grades matrix

Every grade we track for this printing.

  • PSA10$324
    1d 18.2%7d 0.4%30d 29.0%
    Pop
    5
    Mcap
    $1.6K
    Evidence
    Sparse
    Last
    $3,360
  • PSA9$194
    1d 7.8%7d 0.2%30d 18.9%
    Pop
    32
    Mcap
    $6.2K
    Evidence
    Sparse
    Last
    $246
  • PSA8$139
    1d 30.6%7d 0.5%30d 36.5%
    Pop
    32
    Mcap
    $4.5K
    Evidence
    Limited
    Last
    $60
PSA10$3245$1.6Kup 0.4%down 29.0%down 19.3%Sparse$3,3607mo ago
PSA9$19432$6.2Kdown 0.2%down 18.9%up 0.1%Sparse$2462w ago
PSA8$13932$4.5Kdown 0.5%up 36.5%up 113.5%Limited$601mo ago
PSA7$8417$1.4Kup 0.5%up 14.6%up 46.8%Moderate$751mo ago
PSA6$215$103up 0.7%up 7.0%up 8.0%Sparse$1411mo ago

PSA population report

91 graded copies of Porygon-Z Plasma Blast Prerelease across 5 grades.

PSA 10
5 · 5.5%
PSA 9
32 · 35%
PSA 8
32 · 35%
PSA 7
17 · 19%
PSA 6
5 · 5.5%

PSA 8 makes up 35% of graded copies: 32 of 91. PSA 9 is the most common grade (35%).

Analysis

Porygon-Z - Plasma Blast Prerelease at PSA 10 carries a TCGBerg fair value of $324 as of 2026-11-15. We track a TCGBerg fair value across 5 grades from BW Black Star Promos, from PSA 6 up to PSA 10. A graded population of 5 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has fallen 29.0%.

PSA 8 - frequently asked

How much is a PSA 8 Porygon-Z - Plasma Blast Prerelease from BW Black Star Promos worth?
$139 as of 2026-11-15, the model-derived TCGBerg fair value for a PSA 8 Porygon-Z - Plasma Blast Prerelease from BW Black Star Promos. It rests on limited sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 8 Porygon-Z - Plasma Blast Prerelease from BW Black Star Promos?
32 copies have been graded at PSA 8, the recorded graded population, not the number of copies printed.
How has the PSA 8 Porygon-Z - Plasma Blast Prerelease from BW Black Star Promos price moved recently?
Its TCGBerg fair value has risen 36.5% over the past 30 days.
What did a PSA 8 Porygon-Z - Plasma Blast Prerelease from BW Black Star Promos last sell for?
The most recent recorded sale was $60 on 2026-10-10. This recorded sale is separate from the model-derived fair value.