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 - $1.75
Lightly Played - $1.50
Moderately Played - $1.25
Heavily Played - $1.00
Damaged - $0.75
Near Mint Non-English - $1.75
Lightly Played Non-English - $1.50
Moderately Played Non-English - $1.25
Heavily Played Non-English - $1.00
Damaged Non-English - $0.75
Foil Prices
Near Mint Foil - $8.50
Lightly Played Foil - $8.00
Moderately Played Foil - $6.50
Heavily Played Foil - $5.25
Damaged Foil - $3.50
Near Mint Foil Non-English - $8.50
Lightly Played Foil Non-English - $8.00
Moderately Played Foil Non-English - $6.50
Heavily Played Foil Non-English - $5.25
Damaged Foil Non-English - $3.50