Document Decommissioner

When Document Decommissioner enters the battlefeild, exile up to three target artifact or
enchantment cards from an opponent's graveyard.
Invest 5 {2}{w} ( {2}{w}, Reveal Document Decommissioner
from your hand: draw a card. Then put Document Decommissioner into your library fifth from the top.)
When you Invest Document Decommissioner, destroy
up to one target artifact or enchantment.