Omastar from the Arceus set is a Rare rarity card, numbered 23 out of 99. As a Water/Rock-type Pokémon, it showcases a unique combination of abilities that appeals to collectors and players alike. Currently valued at $4.09, this card reflects a stable interest in the market, making it a noteworthy addition for those focused on completing their Arceus set or investing in Pokémon cards.