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 does the number of myr. It's a perfect equilibrium."
—Memnarch

• Number: 235
• Rarity: U
• Type: Artifact
• Mana cost: 2
• Color: Colorless
• Artist: Mark Tedin