Full disclosure, this deck is very heavily influenced by SaffronOlive's R/B Eldrazi Aggro List (Link: http://www.mtggoldfish.com/articles/budget-magic-oath-of-the-gatewatch-updates-10-deck, It's the Second Deck on the list.) I'm not going to explain the choices I made that he explains in his article, but I will explain the changes I made to the list.
Creatures
While most of the creature choices are the same as Saffron's there are a few notable exceptions I made that will be explained here.
The most notable difference that you probably notice is the exclusion of Dust Stalker and the inclusion of Thought-Knot Seer. Dust Stalker Was a very "All-in" type creature in this deck, you played it for it's cost and thats about it, it died to removal easily, even easier with the release of Spatial Contortion, it also lacked late game reach outside of being a beater whereas Thought-Knot Seer can be played all the way from turn four till the end of the game and almost always provides value. I removed Eldrazi Obligator because it was terribly inconsistent and very easy to remove or chump. I replaced it with Slaughter Drone for a better chance of removing big creatures through blocking. The rest of the choices in creatures are fairly self-explanatory.
Spells
There are very few spells in this deck and this is also largely self-explanatory, however I have been considering adding in some Wild Slash's for some extra reach, but I'm uncertain if it's necessary.
Bad Match-ups
Arguably the worst match-up for this deck, and likely most important, is Abzan, which it completely crumples too, we might be able to put up a good fight or even win pre-board, but afterwards it becomes next to impossible unless our opponent has very slow draws. While I know it will be rotating out quite soon, I still want to know if there is some way to even the odds just a little, (And, no, Playing Abzan is not a valid answer.)
Other than Abzan most of our match-ups range from fairly bad but winnable with skill and the right sideboards, decks like Esper Dragons and Naya Tokens, to complete and utter domination, basically any deck slower than ours that can't stabilize well. I haven't faced Atarka Red with this deck since it was early in development and still Mono-Black, so I'm not really sure how it would go, based on previous experience it would probably be a race towards who could go critical first,with the odds probably favoring Atarka Red by a small, but not insignificant margin.
Rotation
I think this deck will fair well in rotation, and might even be more competitive. The biggest loss for this deck in rotation is without a doubt Ghostfire Blade, however, I feel that with the death of the Abzan style decks and other decks like them, we have a higher chance of winning overall from a loss of our worst match-ups. In a pinch I could probably use Stoneforge Masterwork as a pseudo Ghostfire Blade until I can find something better.
