Whenever a nontoken creature enters the battlefield, if Genesis Chamber is untapped, that creature's controller creates a 1/1 colorless Myr artifact creature token.
"As the experimental population grows, so do the number of myr. It's a perfect equilibrium."
—Memnarch
Near Mint - $1.500
Lightly Played - $1.200
Moderately Played - $1.100
Heavily Played - $900
Damaged - $800
Near Mint Spanish - $1.500
Lightly Played Spanish - $1.200
Moderately Played Spanish - $1.100
Heavily Played Spanish - $900
Damaged Spanish - $800
Foil Prices
Near Mint Foil - $11.400
Lightly Played Foil - $9.100
Moderately Played Foil - $8.000
Heavily Played Foil - $6.900
Damaged Foil - $5.700
Near Mint Foil Spanish - $11.400
Lightly Played Foil Spanish - $9.100
Moderately Played Foil Spanish - $8.000
Heavily Played Foil Spanish - $6.900
Damaged Foil Spanish - $5.700