Affinity for Swamps (This spell costs less to cast for each Swamp you control.)
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
The longer it skulks through the corrosive gases of Mephidross, the more it adopts their thirst for death.
Affinity for artifacts (This spell costs less to cast for each artifact you control.)
Flying
When Furnace Dragon enters the battlefield, if you cast it from your hand, exile all artifacts.
Whenever Gemini Engine attacks, create a colorless Construct artifact creature token named Twin that's attacking. Its power is equal to Gemini Engine's power and its toughness is equal to Gemini Engine's toughness. Sacrifice the token at end of combat.
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