Return it to the battlefield under its owner's control tapped and attacking at the beginning of that player's next declare attackers step
The Mono-Black version doesnt have much to take advantage of that, but filling your graveyard with Dread Wanderers and other Zombies does help your Diregraf Colossuses get out of burn range
So, for example, suppose you have a five-cost Marrow-Gnawer
I kind of hoped this would find its way into Standard when The Brothers War (BRO) released, given its relevance in regards to that set, but alas
While it features new and familiar Eldrazi cards, its actually only half dedicated to Eldrazi, with the other half containing generic artifact support
This is important, because standard free-for-all Magic tends to be more endurance test and chat-fest than actual game everyone sit around, randomly pick at people, turtle up, and ignore the guy who built the abusive innocent-looking deck until he combo kills the entire table three hours later (having spent at least two of those hours whining about how he wasnt a threat