Underground Sea value

The value of your *Underground Sea* cards varies significantly based on the set and condition. The Alpha version is the most valuable at $5600 used, followed by the Beta version at $3505 used. The Unlimited and International Edition versions are priced much lower at $1342.24 and $402.24 used, respectively. For the 30th Anniversary set, the #578 version is valued at $436.66 used, while the #281 is worth $204.5 used. The Revised version (#290) and the standard Unlimited Edition are valued around $812.69 and $1208.94 used.