Gemstone Mine [Weatherlight] OTS Tournament Pack 7 You can only use each

You can only use each effect of "Adamancipator Researcher" once per turn

This card cannot be Special Summoned except with its own effect or with "Assault Mode Activate"

It harnesses the power of night in a land where daylight fears to show itself

that monster you control gains 2000 ATK/DEF during that damage calculation only

Gemstone Mine [Weatherlight] OTS Tournament Pack 7 You can only use eachSet: Weatherlight Type: Land Rarity: Uncommon 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. If there are no mining counters on Gemstone Mine, sacrifice it.