Not only is this version of the card the highest valued card in Sun & Moon, but there is also a Shiny version of this card that appears in Hidden Fates. If we take evidence from the way Umbreon cards operate in the Pokémon TCG, it's safe to say that it's the most popular Eeveelution. Umbreon GX Rainbow Rare: This is the most valuable card of the set at a current market price of $46.23.Currently, the Espeon is valued at $35.87. That is generally what happens when you have a set with a Secret Rare Eeveelution, which is why Japan's newest expansion, Eevee Heroes, is selling out to the extent that it is. The two Rainbow Rare Eeveelutions of Sun & Moon base are the set's chase cards. Espeon GX Rainbow Rare: There's no doubt about it.
Note that, because the Rainbow Rares don't feature different base artwork than the Full Arts, this will touch on the value so that completionist collectors know what they're in for. We continue our journey (which you can follow at the Sun & Moon tag) with the Rainbow Rares of the set. This is also the set that revolutionized how Secret Rare cards are handled, drastically increasing the number of these special pulls from the previous XY era by introducing Rainbow Rare cards, which feature the GX cards in a textured card with a silvery, rainbow color palette. This set also introduced GX cards, which replaced the previous EX style of cards as both standard Ultra Rare pulls and Full Arts. Based on the Sun & Moon games, this expansion was the first to feature Alolan Pokémon. On February 3rd, 2017, the Pokémon TCG released the Sun & Moon base set that kicked off a whole new era of cards. Let's take a trip through recent Pokémon TCG history.