Trample, infect, indestructible If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

{T}, Sacrifice an artifact: Add an amount of {B} equal to the sacrificed artifact's mana value.

As an additional cost to cast this spell, sacrifice a creature. Add {B}{B}{B}{B}.