MTGO Modern - Temur Grinding Breach

A great version of a good deck? A good version of a great deck? Anyhow, squeezing wrenn and six into breach seems like a good idea, right? Let's see.

http://www.streamdecker.com/deck/c3dm...

1 Aether Spellbomb
1 Boseiju, Who Endures
1 Breeding Pool
4 Emry, Lurker of the Loch
4 Expressive Iteration
1 Galvanic Blast
1 Grapeshot
3 Grinding Station
4 Mishra's Bauble
4 Misty Rainforest
3 Mox Amber
4 Ragavan, Nimble Pilferer
4 Scalding Tarn
1 Shadowspear
1 Snow-Covered Island
1 Snow-Covered Mountain
1 Springleaf Drum
2 Steam Vents
1 Stomping Ground
4 Underworld Breach
4 Unholy Heat
4 Urza's Saga
2 Wooded Foothills
4 Wrenn and Six

SIDEBOARD:
1 Aether Gust
1 Boseiju, Who Endures
2 Engineered Explosives
1 Jegantha, the Wellspring
2 Mystical Dispute
1 Nature's Claim
1 Pithing Needle
1 Soul-Guide Lantern
2 Spell Pierce
1 Tormod's Crypt
2 Veil of Summer -- Watch live at   / manacymbal