Spoiled here: http://www.hareruyamtg.com/article/category/detail/2971
3/3 Eldrazi Horror
You may cast Eternal Scourge from exile.
When Eternal Scourge becomes the target of a spell or ability an opponent controls, exile it.
Card seems amazing to me for eldrazi decks. Granted it is not disruptive but it provides amazing inevitability and long term CA for the deck, and with eye of ugin it costs one from exile or hand.
Now it cannot be used as a sacrifice outlet because it only gets exiled if targeted, but it basically is immune to being put down by removal. Your opponent has to block and kill it, as swords or path wont even keep it out of play.
In a deck that really wants to spam Mimics and Endless ones, I think this really has a place (maybe not a 4 of) as just another quality body that does not require actual colorless mana. I think it is very possible between these 3 creatures and TKS to see a very aggro version of eldrazi that just wants to winmill a win early and fast and this could be a key component of that list that also happens to provide inevitability.
Interestingly it also is another eldrazi that also happens to not specifically require colored mana, so it works with moxen.