Mystery Energy #166

Name: Mystery Energy #166
Brand: Pokémon
Price: 4.38 USD

Pokémon card · XY era · Released Apr 2017

Sealed products

Market value

$99.88

▼ 50% since Jul 2026

Estimated from recent completed sales.

$99.88 · Nov 2026

Live now · PSA 10

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About this card

Card guide

Mystery Energy #166 — price research

Mystery Energy #166 is a Pokémon card from Japanese Best of XY (2017). Today it's worth about $99.88 in PSA 10 and $4.38 ungraded. Compare grades, see the price chart and browse cards for sale on eBay.

Prices on eBay can differ from these values depending on condition, grading company and seller. They're a guide to what the card is worth, not investment advice.

Liquidity

lowLow liquidity

14 sales/year · estimated tier from yearly volume · ~1 all grades

~1.2

sales/month

Trades occasionally — expect to wait

Scale

Very high
High
Moderate
Low
Illiquid

Grade	Price	3mo	6mo	12mo	Δ12mo	PSA Pop	PSA Pop %	Liquidity
PSA 10	$99.88Shop on eBay	$127	$200	$200	—	—	—	low
PSA 9	$12.78Shop on eBay	$12.78	$32.24	$32.24	-60%	—	—	low
Ungraded	$4.38Shop on eBay	$3.08	$3.08	$3.15	+39%	—	—	low