Merfolk
A Modern deck, by Alex Newsome
5th place at a tournament in Cayce, South Carolina, United States on 2015-10-18
As reported at www.starcitygames.com

Maindeck:

Artifacts
4 Aether Vial

Creatures
4 Cursecatcher
4 Harbinger of the Tides
4 Lord of Atlantis (Not currently legal in Modern)
4 Master of the Pearl Trident
3 Master of Waves
4 Merrow Reejerey
2 Phantasmal Image
4 Silvergill Adept

Enchantments
4 Spreading Seas

Instants
2 Dismember

Legendary Creatures
1 Kira, Great Glass-Spinner

Basic Lands
12 Island

Lands
1 Cavern of Souls
4 Mutavault
2 Wanderwine Hub

Legendary Lands
1 Minamo, School at Water's Edge

Sideboard:
2 Relic of Progenitus
2 Spellskite
3 Tidebinder Mage
1 Dispel
2 Hurkyl's Recall
2 Spell Pierce
2 Vapor Snag
1 Kira, Great Glass-Spinner