Esper Seer

So I saw a deck on MTGDaily that I thought could be really fun for standard, if I decide to play.
4 Duskmantle Seer
4 Omenspeaker
2 Blood Baron of Vizkopa

2 Ashiok, Nightmare Weaver

4 Thoughtseize

4 Azorius Charm
3 Doom Blade
3 Dimir Charm
2 Cyclonic Rift
2 Essence Scatter
2 Voyage's End
2 Syncopate
1 Sphinx's Revelation

4 Watery Grave
4 Hallowed Fountain
4 Temple of Deceit
3 Temple of Silence
2 Mutavault
2 Godless Shrine
3 Island
3 Swamp