U/G Merfolk
Featured by Dylan Donegan on 2017-09-26 (Modern)

Maindeck:

Artifacts
4 Aether Vial

Creatures
4 Harbinger of the Tides
4 Kumena's Speaker
4 Lord of Atlantis (Not currently legal in Modern)
4 Master of the Pearl Trident
4 Merfolk Branchwalker
3 Merrow Reejerey
4 Silvergill Adept

Enchantments
4 Spreading Seas

Instants
4 Collected Company

Legendary Creatures
2 Kira, Great Glass-Spinner

Basic Lands
2 Island

Lands
2 Botanical Sanctum
2 Breeding Pool
3 Cavern of Souls
2 Flooded Strand
4 Misty Rainforest
4 Mutavault

Sideboard:
4 Relic of Progenitus
2 Disdainful Stroke
2 Dismember
2 Dispel
3 Natural State
2 Spell Pierce