I'm going to be trying a main-deck Engineered Explosives soon. It's in my list but I haven't been able to play another League for a while.
Pithing Needle is another completely defensable main deck inclusion, but with all of the Eldrazi on MTGO at this point I want another main-deck answer to Chalice of the Void.
On the topic of Eldrazi I will say that Blazing Archon is the truth. It is so great against them, and also helps against decks that want to make Marit Lage. Good times.
I wrote about my lists here:
http://www.mtggoldfish.com/articles/...acy-reanimator - Feel free to let me know what you think. One reader commented about my omission of the DRS workaround involving Exhume, and that is a fair point. Maybe in another article someday...