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 - $4.300
Lightly Played - $3.400
Moderately Played - $3.000
Heavily Played - $2.600
Damaged - $2.200
Near Mint Spanish - $4.300
Lightly Played Spanish - $3.400
Moderately Played Spanish - $3.000
Heavily Played Spanish - $2.600
Damaged Spanish - $2.200