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
NM-Mint - $2.60
Lightly Played - $2.30
Moderately Played - $2.10
Heavily Played - $1.80
Damaged - $1.30
NM-Mint Non English - $2.60
Lightly Played Non English - $2.30
Moderately Played Non English - $2.10
Heavily Played Non English - $1.80
Damaged Non English - $1.30
Foil Prices
NM-Mint Foil - $22.80
Lightly Played Foil - $20.50
Moderately Played Foil - $18.20
Heavily Played Foil - $15.90
Damaged Foil - $11.40
NM-Mint Foil Non English - $22.80
Lightly Played Foil Non English - $20.50
Moderately Played Foil Non English - $18.20
Heavily Played Foil Non English - $15.90
Damaged Foil Non English - $11.40