Mystery Energy 166/171 — The Best of XY
The Best of XY
Japanese Mystery Energy 166/171 The Best of XY price today: $0.49 raw, $12.78 PSA 9, $99.88 PSA 10. PSA pop 4 (75% gem). Updated Oct 25.
Mystery Energy 166/171 price
- Current raw price: $0.49 (as of 2026-10-26)
- Past month: -$3.26 (-87%) from $3.75
- Past 3 months: -$6.51 (-93%) from $7.00
- Past year: -$3.50 (-88%) from $3.99
- 1-year high: $7.00, low: $0.49
- About 15 sales a year (PriceCharting)
Graded prices
| Grade | Price |
|---|---|
| Raw | $0.49 |
| PSA 9 | $12.78 |
| PSA 10 | $99.88 |
| BGS 10 | $130.00 |
| CGC 10 | $40.00 |
PSA 10 premium: 203.8x the raw price.
PSA population
- Total graded: 4
- Gem rate (PSA 10 share): 75%
- Population week: 2026-10-26
| Grade | Graded |
|---|---|
| PSA 9 | 1 |
| PSA 10 | 3 |
Printings
| Printing | Raw | PSA 10 | PSA pop |
|---|---|---|---|
| Normal | $0.49 | $99.88 | 4 |
| Reverse Holo | 25 |