![Slither Wing [Master Ball] #87 from Pokemon Japanese Terastal Festival](https://pokeinvest-japanese-card-images.nyc3.cdn.digitaloceanspaces.com/Terastal_Festival/402_Slither_Wing_87.jpg)
Slither Wing [Master Ball] #87 PSA 10: price & population
PSA 10
$39.99
Raw
$9.89
PSA 10 pop
574
Gem rate
90.1%
A PSA 10 Slither Wing [Master Ball] #87 from Japanese Terastal Festival sells for $39.99 — a 304% premium over the $9.89 raw price. PSA has graded this card 637 times; 574 came back a 10 (90.1% gem rate), and 53 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $25.50. The jump from 9 to 10 is worth $14.49 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
