U/R Twin
Featured by Todd Anderson on 2011-08-14 (Standard)
As written about in http://www.starcitygames.com/php/news/article/22514.html

Maindeck:
7 Island
6 Mountain

Artifacts
4 Shrine of Piercing Vision (Not currently legal in Standard)

Creatures
4 Deceiver Exarch (Not currently legal in Standard)

Enchantments
4 Splinter Twin (Not currently legal in Standard)

Instants
2 Dismember (Not currently legal in Standard)
3 Dispel (Not currently legal in Standard)
2 Into the Roil
4 Mana Leak (Not currently legal in Standard)

Sorceries
4 Gitaxian Probe (Not currently legal in Standard)
4 Ponder (Not currently legal in Standard)
4 Preordain (Not currently legal in Standard)
2 Pyroclasm (Not currently legal in Standard)

Lands
1 Arid Mesa (Not currently legal in Standard)
3 Halimar Depths (Not currently legal in Standard)
2 Misty Rainforest (Not currently legal in Standard)
4 Scalding Tarn (Not currently legal in Standard)

Sideboard:
2 Manic Vandal (Not currently legal in Standard)
2 Combust (Not currently legal in Standard)
2 Flashfreeze (Not currently legal in Standard)
1 Into the Core (Not currently legal in Standard)
3 Mental Misstep (Not currently legal in Standard)
2 Mutagenic Growth (Not currently legal in Standard)
2 Negate
1 Pyroclasm (Not currently legal in Standard)