Images
Hall of Gemstone
name
mana_cost
Supertypes
World
supertypes
Types
Enchantment
types
Prices
Normal
Details
Rules
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.
rules
Power
power
Toughness
toughness
Color Identity
color_identity
Rarity
Rare
rarity
Number
221
number
Artist
David A. Cherry
artist
Language
English
language
(EN)
language_code
Expansion
Mirage
expansion.name
Rulings
Although the color may be altered, any restrictions on the use of the mana are not removed.
2004-10-04
Will not affect lands that do not produce mana.
2004-10-04
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.
2008-10-01
Any colorless mana that's produced isn't affected.
2016-08-23
rulings