21 Island
3 Nykthos, Shrine to Nyx
1 Archetype of Imagination
2 Bident of Thassa
1 Chasm Skulker
2 Dictate of Kruphix
2 Dissipate
3 Encrust
2 Fated Infatuation
2 Master of Waves
4 Negate
3 Paragon of Gathering Mists
2 Polymorphous Rush
1 Scion of Glaciers
1 Scourge of Fleets
4 Triton Shorestalker
2 Vortex Elemental
4 Wall of Frost
Sideboard:
1 Archetype of Imagination
1 Swan Song