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Grass Energy #21, Normal, Bulbasaur Deck

Japanese edition

  • Card number: #21
  • Rarity: Promo
  • Finish: Promo

A PSA 10 Grass Energy #21 Normal from Bulbasaur Deck has a TCGBerg fair value of $64 as of Nov 15, 2026. It rests on 7 recorded sales, the latest on Aug 17, 2026. PSA has graded 7 copies at PSA 10. Sales evidence is sparse, so treat this value as a rough estimate.

TCGBerg fair valuePSA 10
As of Nov 15, 2026
$64up 45.9%30-day change

TCGBerg Algorithm (estimated from recorded sales).

7 sales · latest Aug 17, 2026

Fair value3 months
Last sale$42Aug 17, 202634.0% below fair
5-sale avg$44Mar 26Aug 17
Population · PSA 10
7
Market cap
$445
Volatility
15.9%
YTD
↑ 73.0%
Sales evidence
Sparse

TCGBerg fair value · PSA 10

$64

30D45.9%YTD73.0%
Sales evidenceSparse

Based on 7 recorded sales. Latest sale: Aug 17, 2026.

Market cap
$445
fair value x population
Population
7
graded copies
Last sale
$42
-34.0% vs fair
5-sale avg
$44
recent sales
Grading

Price history

Open terminalPro

Weekly fair value for PSA 10.

Open in TerminalCandles, every grade, full historyPro

What the evidence says

The last PSA 10 sale, $42 on Aug 17, 2026, sits 34.0% below the $64 fair value. The value rests on 7 recorded PSA 10 sales. Its confidence band runs from $55 to $72. A PSA 10 ($64) is worth 27.5 times a PSA 9 ($2.31). Over the past 30 days the PSA 10 value has risen 45.9%. With sparse 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

3 tracked

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

  • $42
    Aug 17, 2026 · via Fanatics Collect
    PSA10above fair value by 9.3%
  • $49
    Jun 1, 2026 · via Fanatics Collect
    PSA10above fair value by 6.7%
  • $40
    Mar 26, 2026 · via eBay
    PSA10above fair value by 52.8%

All grades matrix

Every grade we track for this printing.

  • PSA10$64
    1d 0.0%7d 0.5%30d 45.9%
    Pop
    7
    Mcap
    $445
    Evidence
    Sparse
    Last
    $42
  • PSA9$2.31
    1d 0.4%7d 0.9%30d 20.9%
    Pop
    8
    Mcap
    $18
    Evidence
    Sparse
    Last
    -
  • PSA8$1.93
    1d 1.0%7d 2.1%30d 23.7%
    Pop
    2
    Mcap
    $4
    Evidence
    Sparse
    Last
    -
PSA10$647$445up 0.5%up 45.9%up 87.0%Sparse$423mo ago
PSA9$2.318$18up 0.9%up 20.9%up 34.3%Sparse-
PSA8$1.932$4up 2.1%up 23.7%up 37.9%Sparse-
PSA7$1.610-up 3.2%up 26.8%up 41.2%Sparse-
PSA6$1.350-up 4.7%up 29.8%up 45.2%Sparse-

PSA population report

17 graded copies of Grass Energy Normal across 3 grades.

PSA 10
7 · 41%
PSA 9
8 · 47%
PSA 8
2 · 12%

PSA 10 makes up 41% of graded copies: 7 of 17. PSA 9 is the most common grade (47%).

Analysis

Grass Energy at PSA 10 carries a TCGBerg fair value of $64 as of 2026-11-14. We track a TCGBerg fair value across 5 grades from Bulbasaur Deck, from PSA 6 up to PSA 10. A graded population of 7 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 risen 45.9%.

PSA 10 - frequently asked

How much is a PSA 10 Grass Energy from Bulbasaur Deck worth?
$64 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 10 Grass Energy from Bulbasaur Deck. It rests on sparse sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 10 Grass Energy from Bulbasaur Deck?
7 copies have been graded at PSA 10, the recorded graded population, not the number of copies printed.
How has the PSA 10 Grass Energy from Bulbasaur Deck price moved recently?
Its TCGBerg fair value has risen 45.9% over the past 30 days.
What did a PSA 10 Grass Energy from Bulbasaur Deck last sell for?
The most recent recorded sale was $42 on 2026-08-17. This recorded sale is separate from the model-derived fair value.