Merfolk
A Lorwyn/Shadowmoor Block deck, by Nicholas Spagnolo
4th place at a PT: Berlin PTQ Season tournament in Philadelphia, Pennsylvania, United States on 2008-06-22
As reported at http://wizards.com/default.asp?x=mtgevent/berlin08ptq/0621philadelphia

Maindeck:

Creatures
4 Cursecatcher
4 Merrow Reejerey
2 Mirror Entity
4 Silvergill Adept
2 Sower of Temptation
4 Stonybrook Banneret

Instants
4 Cryptic Command

Kindred Instants
2 Crib Swap
4 Sage's Dousing

Legendary Creatures
2 Sygg, River Guide

Sorceries
4 Ponder

Basic Lands
10 Island
3 Plains

Lands
4 Mutavault
3 Mystic Gate
4 Wanderwine Hub

Sideboard:
4 Leech Bonder
3 Plumeveil
3 Reveillark
2 Sower of Temptation
2 Crib Swap
1 Sygg, River Guide