Darksteel Golem(Complete)

Indistructible, Trample, Afflict3, Ward{5},
Haste, Anialator1
This creature's power is equal to twice the
number of colorless artifacts and lands on the battlefeild.
When this creature attacks sacrifice and artifact and chose one.
-Gain 2 life -Sacrifice this creature ,add one Darksteel Golem(Toxified) to the battlefield if that artifact's mana value was 7 or greater.