Name:Gemstone Mine
ManaCost:no cost
Types:Land
K:etbCounter:MINING:3
A:AB$ Mana | Cost$ T SubCounter<1/MINING> | Produced$ Any | SubAbility$ DBSac | SpellDescription$ Add one mana of any color to your mana pool. If there are no mining counters on Gemstone Mine, sacrifice it.
SVar:DBSac:DB$ Sacrifice | SacValid$ Self | ConditionPresent$ Card.Self+counters_EQ0_MINING
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/gemstone_mine.jpg
Oracle:Gemstone Mine enters the battlefield with three mining counters on it.\n{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.