The Master Ball card from the Power Keepers set is a Reverse Holofoil variant, classified as an Uncommon rarity and numbered #78. In the Pokémon Trading Card Game, it is valued at approximately $3.36, reflecting its status among collectors. As part of the Power Keepers expansion, this card is notable for its strategic gameplay applications while also appealing to those interested in completing their sets or investing in Pokémon cards.