2004-10-04 : If the land produces more than one color of mana at a single time, its controller chooses which of those types is produced by Mana Flare’s ability.

2004-10-04 : Mana Flare adds one of whatever color the land produces after applying any land type or color changing effects.

2004-10-04 : Only produces extra mana when land is tapped for mana, not when tapped by some other effect.

2004-10-04 : The types of mana are white, blue, black, red, green, and colorless.

2004-10-04 : This is a triggered mana ability.

2004-10-04 : When used with lands that can produce multiple colors, Mana Flare produces one additional mana of the same color that was produced. It can’t give a mana of a color that wasn’t produced.

2007-09-16 : Does not copy any restrictions on the mana, such as with Mishra’s Workshop or Pillar of the Paruns.

2007-09-16 : Produces only one additional mana, regardless of how much was produced by tapping the land.