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Merfolk
A Standard deck, by Nicholas Spagnolo
1st place at a PT: Austin PTQ Season tournament in Boston, Massachusetts, United States on 2009-08-02
As reported at http://www.wizards.com/magic/magazine/events.aspx?x=mtg/daily/eventcoverage/austin09ptq/0802boston

Maindeck:

Creatures
4 Merfolk Sovereign (Not currently legal in Standard)
4 Merrow Reejerey (Not currently legal in Standard)
4 Silvergill Adept (Not currently legal in Standard)
2 Sower of Temptation (Not currently legal in Standard)
4 Stonybrook Banneret (Not currently legal in Standard)

Instants
4 Cryptic Command (Not currently legal in Standard)
2 Harm's Way (Not currently legal in Standard)
2 Path to Exile (Not currently legal in Standard)

Legendary Creatures
3 Sygg, River Guide (Not currently legal in Standard)
2 Vendilion Clique (Not currently legal in Standard)

Sorceries
1 Sleep (Not currently legal in Standard)

Tribal Instants
4 Sage's Dousing (Not currently legal in Standard)

Basic Lands
9 Island

Lands
4 Glacial Fortress (Not currently legal in Standard)
4 Mutavault (Not currently legal in Standard)
3 Mystic Gate (Not currently legal in Standard)
4 Wanderwine Hub (Not currently legal in Standard)

Sideboard:
4 Meddling Mage (Not currently legal in Standard)
4 Reveillark (Not currently legal in Standard)
2 Harm's Way (Not currently legal in Standard)
2 Path to Exile (Not currently legal in Standard)
3 Sleep (Not currently legal in Standard)