At the beginning of your end step, create a tapped Powerstone token. (It's an artifact with “{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.”)
{6}: Draw a card and put a +1/+1 counter on Geology Enthusiast.
Near Mint - $100
Lightly Played - $100
Moderately Played - $100
Heavily Played - $100
Damaged - $100
Near Mint Spanish - $100
Lightly Played Spanish - $100
Moderately Played Spanish - $100
Heavily Played Spanish - $100
Damaged Spanish - $100
Foil Prices
Near Mint Foil - $200
Lightly Played Foil - $200
Moderately Played Foil - $200
Heavily Played Foil - $200
Damaged Foil - $100
Near Mint Foil Spanish - $200
Lightly Played Foil Spanish - $200
Moderately Played Foil Spanish - $200
Heavily Played Foil Spanish - $200
Damaged Foil Spanish - $100