Hall of Gemstone 1998 Brian Selden MIR SB (World Championship Decks)

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.

NM - $8.50
LP - $6.80
MP - $5.10
HP - $3.40
DMG - $1.70