I've always considered Wastelands, but I'm trying to play lots of expensive spells and this deck is super mana hungry, so Wasteland isn't really an option if I'm trying to consistently cast Jace/Verdict/Snapcaster/Clique/Jitte cast + equip, etc. I like Factories as they allow me to go on the beatdown plan quickly while committing very little in terms of resources to the board. They also live through most sweepers, and they let me have an out to sacrifice effects (as in, TNN on board, my opponent casts Edict, I activate Factory in response). They are also surprisingly effective at blocking and creating board stalls when needed. (Side note: I own all 4 seasons of Gem Mint Factories, so...)

In that vein, I'm really digging Qweerios' suggestion of Moorland Haunt. My creatures die a lot and I'd rather have a semi-steady stream of 1/1 flyers than anything else in most situations. 2012 tech. What's old is new again.

BTW, TNN is a miserable card. But if I don't run it myself, then I virtually auto-lose to the decks that are running TNN. Fight fire with fire.