Try to get Blighsteel Colossus early with Shape Anew on a token created by Master's Call, or on Inkmoth Nexus on its artifact form. Inkmoth Nexus can give you mana and become an artifact the same turn. On the meanwhile, draw and walls. The green mana is in order to accelerate the combo.

As Blightsteel Colossus is the only artifact in the deck, by merely 3U (and some tricks) you get a 11/11 infect rample indestructible guy.

See Beyond is an excelent card draw engine, and it helps you get one of your Darksteel Colossus back to your library if you accidentally draw it. Scry in great in general.