Hall of Gemstone [Mirage] Water [-20] Set: Jungle 1st Edition Type:

Set: Jungle 1st Edition Type: Water Rarity: Rare Retreat cost: Colorless

Set: Sword & Shield: Silver Tempest Type: Darkness Rarity: Ultra Rare Retreat cost: Colorless

Set: Team Rocket Unlimited Type: Lightning Rarity: Secret Rare Retreat cost: Colorless

where X is the number of lands you control at that time

Set: XY: Furious Fists Type: Fire Rarity: Promo Retreat cost: Colorless

Hall of Gemstone [Mirage] Water [-20] Set: Jungle 1st Edition Type:Set: Mirage Type: World Enchantment Rarity: Rare 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.