![Hall of Gemstone [Mirage]](http://dominocitygamingtcg.com/cdn/shop/products/18e4551f-9f6c-4421-ad66-a270df6d3463_{width}x.jpg?v=1619663898)
![Hall of Gemstone [Mirage]](http://dominocitygamingtcg.com/cdn/shop/products/18e4551f-9f6c-4421-ad66-a270df6d3463_580x.jpg?v=1619663898)
Hall of Gemstone [Mirage]
| Set: | Mirage |
| Type: | World Enchantment |
| Cost: | {1}{G}{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.
