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 - $0.10
Lightly Played - $0.10
Moderately Played - $0.10
Heavily Played - $0.10
Damaged - $0.10
Near Mint Spanish - $0.10
Lightly Played Spanish - $0.10
Moderately Played Spanish - $0.10
Heavily Played Spanish - $0.10
Damaged Spanish - $0.10
Foil Prices
Near Mint Foil - $0.20
Lightly Played Foil - $0.20
Moderately Played Foil - $0.20
Heavily Played Foil - $0.20
Damaged Foil - $0.10
Near Mint Foil Spanish - $0.20
Lightly Played Foil Spanish - $0.20
Moderately Played Foil Spanish - $0.20
Heavily Played Foil Spanish - $0.20
Damaged Foil Spanish - $0.10