The Pokemon Company flooded the market with ETBs, tins, premium collections, booster bundles, and special collection boxes, which means raw copies of even the top chase cards are relatively accessible compared to harder-to-find sets from the same era
I urge you to do your own research, either through looking at your commanders page on EDHREC, or searching on Scryfall for the right cards for your deck
Our last attempt at a scrying-matters card didnt work out too well (The Temporal Anchor), but Planetarium of Wan Shi Tong has much higher upside: It lets you cast spells for free rather than just stockpile extra cards
Despite only being a few months old, the Alternate Art holographic has already sold for an incredible $850
whereas millions of Japanese cards flooded the market, the English run was slashed early, leaving the second set ( Passage to the Grand Line ) as one of the rarest Western collectibles in existence