Merfolk
A Modern deck, by Nick Usman
2nd place at a tournament in Monroeville, Pennsylvania, United States on 2016-08-27
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
4 Master of Waves
2 Merrow Reejerey
4 Silvergill Adept

Enchantments
4 Sea's Claim
4 Spreading Seas

Legendary Creatures
2 Kira, Great Glass-Spinner

Basic Lands
14 Island

Lands
4 Mutavault

Legendary Lands
1 Minamo, School at Water's Edge
1 Oboro, Palace in the Clouds

Sideboard:
2 Grafdigger's Cage
1 Relic of Progenitus
1 Dispel
4 Hurkyl's Recall
4 Remand
3 Vapor Snag