I would love to get some input on my current list. This is basically a Shardless list that has been ported over to team america after playing against almost exclusively combo for the past few weekends. So far I'm pretty happy with the main board I feel like I may need to pick up a 4th sea and the basics might be a little off. My biggest concern is the sideboard right now, I'm pretty happy with most of it, but the Maelstrom Pulse I'm still very unsure of. So far it has been playing very well against other mid range decks and against lands. Need to get reps in against the combo decks this weekend.

Creatures
4 Deathrite Shaman
3 Baleful Strix
2 Snapcaster Mage
2 Leovold, Emissary of Trest
4 True-Name Nemisis
1 Tombstalker

Spells
4 Brainstorm
4 Stifle
4 Abrupt Decay
4 Force of Will
3 Hymn to Tourach
2 Liliana of the Veil
1 Jace, The Mind Sculpter

Lands
2 Bayou
2 Tropical Island
3 Underground Sea
2 Verdant Catacombs
3 Misty Rainforest
4 Polluted Delta
1 Creeping Tar Pit
3 Wasteland
1 Island
1 Swamp

Sideboard
1 Bitterblossom
1 Diabolic Edict
2 Flusterstorm
1 Grafdiggers Cage
1 Invasive Surgery
1 Jace, the Mind Sculpter
1 Maelstrom Pulse
1 Marsh Casualties
2 Pithing Needle
1 Surgical Extraction
2 Thoughtseize
1 Vendilion Clique

Other things I could really use input on:
Should I run TNN?
More Snapcasters?
Bring back goyf?
Hymn?