Grixis Twin
A Modern deck, by James Bowman
4th place at a tournament in Cayce, South Carolina, United States on 2015-09-06
As reported at www.starcitygames.com

Maindeck:

Creatures
4 Deceiver Exarch
2 Pestermite
4 Snapcaster Mage

Enchantments
4 Splinter Twin (Banned in Modern)

Instants
2 Cryptic Command
1 Dismember
2 Dispel
4 Lightning Bolt
1 Magma Spray
4 Remand
2 Spell Snare
1 Terminate

Legendary Creatures
2 Vendilion Clique

Sorceries
4 Serum Visions

Basic Lands
1 Island
1 Mountain
1 Swamp

Lands
1 Blood Crypt
4 Desolate Lighthouse
1 Drowned Catacomb
4 Polluted Delta
4 Scalding Tarn
2 Steam Vents
3 Sulfur Falls
1 Watery Grave

Sideboard:
2 Spellskite
2 Blood Moon
1 Dispel
2 Kolaghan's Command
2 Tasigur, the Golden Fang
2 Keranos, God of Storms
2 Anger of the Gods
2 Thoughtseize