Professor Oak's New Theory
HeartGold SoulSilver · #101/123 · Pokemon
PokemonHeartGold SoulSilverUncommon#101/123
TCGPlayer $0.90eBay $1.99
Updated May 10, 2026, 06:00 AM
Sign in to unlock graded prices and full history.
TCGPlayer
Market Price
$0.90
LowMarketHigh
$0.00$0.90$0.00
1-Day Avg$0.90
7-Day Avg$0.90
30-Day Avg$0.89
30d Trend1.1%
View on TCGPlayer eBay
Sold Listings
$1.99
LowAvgHigh
$1.99$1.99$2.30
1-Day Avg$1.99
7-Day Avg$1.99
30-Day Avg$2.15
30d Trend7.2%
Buy on eBay Price History
Near Mint condition over the last year
Price History is locked
Sign in to view full historical chart and daily history table.