U/W/R Geist
A Modern deck, by Krazykirby4
1st place at a tournament in Magic Online on 2013-01-13
As reported at http://www.wizards.com/Magic/Digital/MagicOnlineTourn.aspx?x=mtg/digital/magiconline/tourn/4877272

Maindeck:

Artifacts
1 Sword of Fire and Ice

Creatures
2 Aven Mindcensor
4 Snapcaster Mage
1 Thundermaw Hellkite

Instants
2 Electrolyze
2 Izzet Charm
4 Lightning Bolt
4 Lightning Helix
2 Mana Leak
3 Path to Exile
3 Remand

Legendary Creatures
4 Geist of Saint Traft
3 Vendilion Clique

Basic Lands
2 Island
1 Mountain
1 Plains

Lands
4 Arid Mesa
4 Celestial Colonnade
1 Glacial Fortress
2 Hallowed Fountain
1 Sacred Foundry
4 Scalding Tarn
2 Steam Vents
1 Sulfur Falls
2 Tectonic Edge

Sideboard:
1 Batterskull
2 Engineered Explosives
1 Baneslayer Angel
2 Rule of Law
2 Counterflux
1 Disenchant
2 Tempest of Light
2 Pyroclasm
2 Sowing Salt