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U/W Delver
A Standard deck, by Matthew Costa
1st place at a Dark Ascension Standard tournament in Baltimore, Maryland, United States on 2012-02-26
As reported at http://www.wizards.com/magic/magazine/article.aspx?x=mtg/daily/eventcoverage/gpbal12/welcome#0

Maindeck:

Artifacts
2 Runechanter's Pike (Not currently legal in Standard)
2 Sword of War and Peace (Not currently legal in Standard)

Creatures
4 Delver of Secrets (Not currently legal in Standard)
3 Invisible Stalker (Not currently legal in Standard)
4 Snapcaster Mage (Not currently legal in Standard)

Instants
2 Dismember (Not currently legal in Standard)
4 Mana Leak (Not currently legal in Standard)
2 Thought Scour (Not currently legal in Standard)
4 Vapor Snag (Not currently legal in Standard)

Legendary Creatures
4 Geist of Saint Traft (Not currently legal in Standard)

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

Basic Lands
9 Island
1 Plains

Lands
4 Glacial Fortress (Not currently legal in Standard)
3 Moorland Haunt (Not currently legal in Standard)
4 Seachrome Coast (Not currently legal in Standard)

Sideboard:
1 Batterskull (Not currently legal in Standard)
2 Phantasmal Image (Not currently legal in Standard)
2 Celestial Purge (Not currently legal in Standard)
2 Dissipate (Not currently legal in Standard)
1 Divine Offering (Not currently legal in Standard)
1 Surgical Extraction (Not currently legal in Standard)
1 Jace, Memory Adept (Not currently legal in Standard)
2 Corrosive Gale (Not currently legal in Standard)
1 Revoke Existence (Not currently legal in Standard)
2 Timely Reinforcements (Not currently legal in Standard)