Rocket's Secret Experiment
Challenge from the Darkness · #promo · Uncommon · 1998JPN
$4.75
Market price ▼ 3.7% (1Y)
Prices as of Jul 27, 2026
Price history
Normal▼ 3.7% 7d$4.75
Low $1.20Mid $4.74High $10.00
Loading chart…
Buy it now on eBay
Loading live listings…
Live from eBay · affiliate links support CardPrice · see recent sold results →
How much is Rocket's Secret Experiment #promo worth?
A raw copy of Rocket's Secret Experiment #promo (Challenge from the Darkness, 1998) is worth about $4.75 right now, based on the latest market data from July 28, 2026.
These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.
