U/R Twin
A Modern deck, by Arthur Jen
2nd place at a tournament in Portland, Oregon, United States on 2014-12-13
As reported at www.starcitygames.com

Maindeck:

Artifacts
1 Vedalken Shackles

Artifact Creatures
1 Spellskite

Creatures
4 Deceiver Exarch
2 Pestermite
4 Snapcaster Mage

Enchantments
4 Splinter Twin (Banned in Modern)

Instants
1 Cryptic Command
2 Dig Through Time (Banned in Modern)
1 Dispel
1 Electrolyze
4 Lightning Bolt
3 Mana Leak
1 Spell Pierce
2 Spell Snare

Legendary Creatures
1 Kiki-Jiki, Mirror Breaker
1 Vendilion Clique

Sorceries
1 Flame Slash
4 Serum Visions

Basic Lands
4 Island
1 Mountain

Lands
1 Breeding Pool
1 Desolate Lighthouse
2 Flooded Strand
1 Misty Rainforest
3 Polluted Delta
2 Scalding Tarn
3 Steam Vents
2 Sulfur Falls
2 Tectonic Edge

Sideboard:
1 Batterskull
1 Engineered Explosives
2 Relic of Progenitus
1 Spellskite
1 Blood Moon
2 Ancient Grudge
1 Counterflux
1 Dismember
1 Echoing Truth
1 Negate
1 Keranos, God of Storms
1 Anger of the Gods
1 Pyroclasm