20 Island
4 Nykthos, Shrine to Nyx
2 Cloudform
2 Disdainful Stroke
2 Dissolve
4 Gudul Lurker
4 Harbinger of the Tides
3 Hypnotic Siren
4 Master of Waves
3 Ordeal of Thassa
4 Shorecrasher Elemental
4 Stratus Dancer
4 Thassa, God of the Sea
Sideboard:
2 Aqueous Form
4 Artisan of Forms
2 Bident of Thassa
4 Chasm Skulker
4 Cloudform
4 Dakra Mystic
1 Darksteel Citadel
1 Encase in Ice
1 Ensoul Artifact
1 Fate Foretold
4 Frost Walker
1 Hall of Triumph
1 Icefall Regent
1 Military Intelligence
2 Negate
2 Nullify
1 Obelisk of Urd
2 Omenspeaker
1 Paragon of Gathering Mists
2 Polymorphist's Jest
2 Retraction Helix
1 Singing Bell Strike
1 Thassa's Rebuff
2 Triton Tactics
2 Vortex Elemental