Grade Matrix
Graded
PSA 6
$200
Grade 7 guide
$260
Grade 8 guide
$533
PSA 9
$1,150
PSA 10
$17,854
PSA 10: 1 sale, last 45 days · Sep 20, 2026 · checked Oct 27, 2026
PSA 9: Median of 15 PSA 9 sales in the last 90 days, latest 2026-10-24. Grade 9 guide (all graders): $1,885.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
CGC
CGC 8
$300
CGC 9
$488
CGC 10
$2,200
CGC P10
-
Availability
TCGplayer Price History
HolofoilProduct 125253Fetched Oct 24, 3:45 AM
Weekly market
$306.99
week ending Oct 23
Weekly avg sale
$333.12
week ending Oct 23
Units sold (week)
6
week ending Oct 23
Card Value FAQ
How much is Mega Gengar EX (Promo #XY166) worth?
GemDelta shows Mega Gengar EX (Promo #XY166) at $306 market price (TCGplayer market). Its Delta multiple is 58.3x.
How much is a PSA 10 Mega Gengar EX (Promo #XY166) worth?
A PSA 10 Mega Gengar EX (Promo #XY166) is currently shown at $17,854, the only PSA 10 sale in the last 45 days (Sep 20, 2026).
PSA 10 Recent sales
| Date | Listing | Sale |
|---|---|---|
| Sep 20, 2026 | 2016 POKEMON XY BS PROMO COLLECTOR CHEST #XY166 M GENGAR EX HOLO PSA 10 | $17853.67 |
| Jul 30, 2026 | POKEMON M GENGAR EX 2016 XY BSP #XY166 PROMO-COLLECTOR CHEST PSA 10 #XY166 | $7697.00 |