Merfolk
A Legacy deck, by Constantine Vigderman
1st place at a 2010 Legacy Open Series tournament in Denver, Colorado, United States on 2010-08-22
As reported at http://www.starcitygames.com

Maindeck:

Artifacts
4 Aether Vial

Creatures
4 Coralhelm Commander
4 Cursecatcher
4 Lord of Atlantis
4 Merrow Reejerey
4 Silvergill Adept

Enchantments
4 Standstill

Instants
4 Daze
4 Force of Will
3 Spell Pierce

Legendary Artifacts
1 Umezawa's Jitte

Basic Lands
12 Island

Lands
4 Mutavault
4 Wasteland

Sideboard:
1 Pithing Needle
2 Relic of Progenitus
1 Tormod's Crypt
3 Blue Elemental Blast
2 Hydroblast
3 Submerge
1 Umezawa's Jitte
1 Kira, Great Glass-Spinner
1 Llawan, Cephalid Empress