Otherwise, recent history suggests the value of a highly playable and coveted mythic rare from a newer set is more appropriately priced in the $50-$80 range (e.g., Sheoldred, the Apocalypse)
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Potential Downsides : Expect to pay full market value or more
They are Mox Pearl, Mox Sapphire, Mox Jet, Mox Ruby, Mox Emerald, Time Walk, Ancestral Recall and Timetwister and of course, the most famous card in Magic, Black Lotus
That makes ex Pokemon rarer than one-star Illustration Rare cards (10.288 percent) but not as rare as Full-Arts (2), three-star Immersive Art cards (0.888), and gold crown cards (0.16) - though its worth noting that pulling a sets immersive art card is more likely than pulling any specific ex Pokemon
Mainly its just a great tempo tool for when you want to push in damage, however