U/R Twin
A Modern deck, by Anssi Alkio
4th place at a tournament in Valencia, Spain on 2014-02-23
As reported at http://www.wizards.com/magic/magazine/Article.aspx?x=mtg/daily/eventcoverage/ptbng14/top_8_decks

Maindeck:
5 Island
2 Mountain

Artifact Creatures
1 Spellskite

Creatures
4 Deceiver Exarch
2 Pestermite
4 Snapcaster Mage

Enchantments
4 Splinter Twin (Banned in Modern)

Instants
2 Cryptic Command
1 Dispel
2 Electrolyze
1 Izzet Charm
4 Lightning Bolt
1 Peek
3 Remand
1 Spell Snare

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

Sorceries
4 Serum Visions

Lands
1 Desolate Lighthouse
3 Misty Rainforest
4 Scalding Tarn
3 Steam Vents
1 Stomping Ground
3 Sulfur Falls
1 Tectonic Edge

Sideboard:
2 Batterskull
2 Relic of Progenitus
2 Grim Lavamancer
2 Blood Moon
1 Threads of Disloyalty
3 Ancient Grudge
1 Dispel
2 Flame Slash