Hall of Gemstone
Card Information
Type: World Enchantment
Mana Cost: 1
CMC: 3
Part of the Reserved List: Yes
Color Identity:
Set: Mirage (MIR)
Rarity: Rare
Collector Number: 221
Oracle 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.
Format Legalities
Card Rulings
- August 23, 2016
Any colorless mana that's produced isn't affected.
Source: wotc - October 1, 2008
This has the supertype world. When a world permanent enters, any world permanents that were already on the battlefield are put into their owners' graveyards. This is a state-based action called the "world rule." The new world permanent stays on the battlefield. If two world permanents enter at the same time, they're both put into their owners' graveyards.
Source: wotc - October 4, 2004
Will not affect lands that do not produce mana.
Source: wotc - October 4, 2004
Although the color may be altered, any restrictions on the use of the mana are not removed.
Source: wotc
Price History
To study a single card is to glimpse the heart of a spell - a frozen moment of ambition, artistry, and arcane intent. Within each glyph lies a spark: a story untold, a duel turned, a destiny altered. Treat it not as mere parchment, dear seeker, but as a shard of the Multiverse itself.