Gemstone Mine

Land
Gemstone Mine enters the battlefield with three mining counters on it.

{T}, Remove a mining counter from Gemstone Mine: Add one mana of any color to your mana pool. If there are no mining counters on Gemstone Mine, sacrifice it.¹
Illus. Brom

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: Sacrificing this card when the last counter is removed is part of the effect of tapping it for mana.
• 9/25/2006: If the last mining counter is removed from Gemstone Mine in some way other than activating its ability (such as Chisei, Heart of Oceans), Gemstone Mine won't be sacrificed but its ability can't be activated.

Format Legality	Legal in Vintage, Legacy, Extended, MTGO Classic Banned in Standard
Printings (3/16)	Time Spiral "Timeshifted" (Special) Judge Gift Program (Special) Weatherlight (Uncommon)