Which Pokmon cards are the most valuable
At four mana, the best use for Razor Pendulum is discarding to Masticore (a fellow four-drop artifact) or sacrificing to Krark-Clan Ironworks (hey look, more four-drops!)
Most peoples childhood copies are in rough shape, which is completely normal
It's presented as a boardgame style self-contained format that you play (given that it comes with play pieces and I'm pretty sure that none of the cards are tournament legal), but it's so expensive that I wouldn't be surprised if 99% of the copies bought are never actually played with or even opened and are just bought for collection
World Map Rating: 2/10 There are probably no lands good enough that its worth putting 3 mana into World Map, but Traveler's Amulet is a perfectly reasonable way to fix your mana and so is this
For collectors targeting specific cards, singles are almost always more cost-effective