![Hall of Gemstone (Brian Selden) (SB) [World Championship Decks 1998]](https://cdn.shopify.com/s/files/1/0451/3388/9694/files/f0787d43-c2ee-520b-a547-37d76c555ab8.jpg?v=1720109298)
Hall of Gemstone (Brian Selden) (SB) [World Championship Decks 1998]
| Set: | World Championship Decks 1998 |
| Type: | World Enchantment |
| Rarity: | Rare |
| Cost: | 1GG |
| Colors: | G |
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.