Hall of Gemstone Tweet Near Mint, English, limit 4 $1.76 / $2.11 credit Lightly Played, English, limit 4 $1.58 / $1.90 credit Moderately Played, English, limit 4 $1.41 / $1.69 credit Heavily Played, English, limit 4 $1.23 / $1.48 credit Buy this product instead Details Color: Green Card Text: At the beginning of each player's upkeep, that player chooses a color. Until end of turn, lands tapped for mana produce mana of the chosen color instead of any other color. Rarity: R Cost: 1GG Card Type: Enchantment Name: Hall of Gemstone Finish: Regular Set Name: Mirage