I'd suggest cutting Engineered Explosives from your list as you won't be able to EE for more than 2, which greatly reduces it's effectiveness in a TNN meta. You're also running a lot of 3 mana spells (4 Snapcaster, 4 TNN, 1 Clique). You may want to consider cutting 1 Snapcaster and maybe 1 TNN (although running 4 TNN in a 3 Equipment deck is reasonable). You look soft to opposing TNNs/bad board states, so 1-2 maindeck Supreme Verdict in UW Blade Control isn't unheard of. If you don't want a maindeck sweeper like Verdict, consider a 1-of Detention Sphere in place of 1 Snapcaster or 1 TNN.
This is what I'm currently running:
2 Vendilion Clique
3 Snapcaster Mage
3 True-Name Nemesis
4 Stoneforge Mystic
1 Batterskull
1 Umezawa’s Jitte
1 Sword of Fire and Ice
3 Jace, the Mind Sculptor
1 Supreme Verdict
1 Counterspell
2 Spell Pierce
2 Spell Snare
4 Force of Will
4 Brainstorm
4 Swords to Plowshares
1 Academy Ruins
1 Karakas
2 Plains
2 Marsh Flats
3 Polluted Delta
3 Island
4 Tundra
4 Flooded Strand
4 Mishra’s Factory
Sideboard:
1 Sword of Feast and Famine
2 Disenchant
3 Rest in Peace
1 Venser, Shaper Savant
1 Flusterstorm
2 Swan Song
1 Detention Sphere
1 Supreme Verdict
3 Meddling Mage