Darksteel Inc. Pipeworks

When Darksteel Inc. Pipeworks enters the battlefield, sacrifice a land.
{b}, {t}: Exile target non artifact creature card
from a graveyard. If you do, you get {e}.
If the exiled card is a dinosaur or skeleton, untap
Darksteel Inc. Pipeworks.
{b}{b}, Pay {e}{e}{e}{e}{e}{e}: Exile Darksteel
Pipeworks and all graveyards. Then destroy all creatures.
"Ka-Chunk Ka-Chunk Ka-Chunk Ka-Chunk..."