18 Island
4 Nykthos, Shrine to Nyx
4 Chasm Skulker
4 Cloudform
2 Dissolve
4 Gudul Lurker
1 Icefall Regent
4 Master of Waves
3 Monastery Siege
2 Omenspeaker
4 Ordeal of Thassa
2 Retraction Helix
4 Stratus Dancer
2 Thassa, God of the Sea
2 Thassa's Rebuff
2 Treasure Cruise
Sideboard:
4 Artisan of Forms
2 Bident of Thassa
4 Chasm Skulker
1 Cloudform
4 Dakra Mystic
4 Frost Walker
2 Negate
2 Nullify
2 Omenspeaker
2 Polymorphist's Jest
2 Retraction Helix
2 Triton Tactics
2 Vortex Elemental