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Elf Combo
An Extended deck, by Mark Jacobson
1st place at a PT: San Juan PTQ Season tournament in Boston, Massachusetts, United States on 2010-02-28
As reported at http://www.wizards.com/magic/magazine/events.aspx?x=mtg/daily/eventcoverage/sanjuan10ptq/0227boston

Maindeck:

Artifacts
4 Cloudstone Curio (Not currently legal in Extended)

Creatures
1 Arbor Elf
4 Elvish Archdruid
4 Elvish Visionary
1 Essence Warden (Not currently legal in Extended)
1 Eternal Witness (Not currently legal in Extended)
4 Heritage Druid (Not currently legal in Extended)
4 Llanowar Elves
4 Nettle Sentinel (Not currently legal in Extended)
1 Ranger of Eos (Not currently legal in Extended)
1 Regal Force (Not currently legal in Extended)
1 Viridian Shaman (Not currently legal in Extended)

Instants
4 Summoner's Pact (Not currently legal in Extended)

Snow Creatures
4 Boreal Druid (Not currently legal in Extended)

Sorceries
4 Glimpse of Nature (Not currently legal in Extended)
1 Primal Command (Not currently legal in Extended)

Basic Lands
4 Forest

Lands
3 Horizon Canopy (Not currently legal in Extended)
4 Misty Rainforest
1 Temple Garden
4 Verdant Catacombs

Legendary Lands
1 Pendelhaven (Not currently legal in Extended)

Sideboard:
1 Burrenton Forge-Tender (Not currently legal in Extended)
1 Loaming Shaman (Not currently legal in Extended)
3 Ranger of Eos (Not currently legal in Extended)
1 Viridian Shaman (Not currently legal in Extended)
4 Umezawa's Jitte (Not currently legal in Extended)
1 Gaddock Teeg (Not currently legal in Extended)
4 Ghost Quarter