Creatures you control are artifacts in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.
Whenever you cast an artifact spell, you lose 1 life and create a 2/2 black Necron Warrior artifact creature token.
Near Mint - $6.400
Lightly Played - $5.100
Moderately Played - $4.500
Heavily Played - $3.800
Damaged - $3.200
Near Mint Spanish - $6.400
Lightly Played Spanish - $5.100
Moderately Played Spanish - $4.500
Heavily Played Spanish - $3.800
Damaged Spanish - $3.200