B/U Teachings
A Time Spiral Block deck, by Jim Davis
1st place at a Pro Tour: Valencia tournament in Philadelphia, Pennsylvania, United States on 2007-07-22
As reported at http://www.wizards.com/default.asp?x=mtgevent/valencia07ptq/0721philadelphia

Maindeck:
5 Island
1 Plains

Artifacts
4 Prismatic Lens

Artifact Creatures
2 Triskelavus

Creatures
2 Aeon Chronicler
3 Shadowmage Infiltrator
3 Vesuvan Shapeshifter

Enchantments
1 Temporal Isolation

Instants
4 Cancel
2 Careful Consideration
3 Mystical Teachings
1 Slaughter Pact
1 Strangling Soot
2 Tendrils of Corruption

Legendary Creatures
1 Teferi, Mage of Zhalfir
1 Venser, Shaper Savant

Sorceries
4 Damnation

Basic Lands
2 Swamp

Lands
4 Dreadship Reef
3 River of Tears
4 Terramorphic Expanse
2 Tolaria West
1 Urza's Factory

Legendary Lands
1 Academy Ruins
3 Urborg, Tomb of Yawgmoth

Sideboard:
1 Disenchant
1 Extirpate
1 Imp's Mischief
1 Pact of Negation
1 Pull from Eternity
2 Slaughter Pact
2 Spell Burst
1 Spin into Myth
1 Sudden Death
2 Tendrils of Corruption
1 Venser, Shaper Savant
1 Vesuva