Usually I just read and try not to post, but I thought I'd share a bit of what I know about this deck. For a long time, I thought Deathblade was a slow midrange deck that was trying to grind each match out via Jace/Batterskull/TNN. Recently, I've learned that is completely wrong. This deck is an aggro deck, older Stoneblade variants without Deathrite/TNN play for a slower, and for the most part worse, game plan. I'd like to imagine I've play a lot of Legacy, but this realization was crazy to me, but overall, the deck has a strong curve and playing aggressively really makes TNN shine. From what I can tell, this is the best TNN deck, so I think playing as aggressively as possible maximizes the card's strength. Some notes about deckbuilding...
-Wasteland: I see people cutting Wastelands for basics and I couldn't disagree more, you want your deck to be capable of a "unbeatable" draw, which is usually, Deathrite ---> Waste a land -->SFM. Playing 3-4 basics in your deck doesn't make you Wasteland proof either, you won't always draw all fetchlands and eventually will have to play your nonbasics, making you even more susceptible to getting Wasted off of a color. Wasteland is aggressive, and like I keep stressing, you want to be aggressive with this deck.
-Bayou: Having a land that can't cast Brainstorm ( the most powerful card in the deck by a large margin) that doesn't provide other utility is pretty unacceptable in my eyes. Very often, I just wouldn't want to draw a Bayou with any hand setup, and I think Tropical Island is a strict upgrade.
-Abrupt Decay: A card that would normally make sense in this strategy, but honestly, this is too greedy. A majority of the time, you will have to fetch your Trop/Bayou in order to cast this, possibly locking yourself out of casting future spells, and with a deck playing the most powerful fair spells, you don't want to do this.
-Snapcaster Mage: I completely cut this card from my deck, and I've been pretty happy, having Deathrite and Snapcaster in your deck is pretty awkward, but more importantly, I want my curve to be lower, I'd rather have 4 TNNs, 2 Lilianas and 1 V-Clique as my 3s and have Spell Pierces/Thoughtseizes in order to press advantages and control the game early. Most games people lose with this deck involve having a bunch of uncastable 3 drops in your hand.
Sword of Fire and Ice: Like I said earlier, 3 drops are really hard to include and Jitte/Batterskull covers most of your bases anyway. I would stay away from cards like this, combo decks aren't going to give you the time to set this up, and more often that not, you'll just wish this was any other card against a Delver deck.