20 Island
2 Aqueous Form
1 Artisan of Forms
3 Breaching Hippocamp
1 Flitterstep Eidolon
2 Griptide
2 Hubris
1 Master of Waves
1 Nimbus Naiad
1 Nyxborn Triton
2 Ordeal of Thassa
1 Phantom Warrior
3 Pin to the Earth
1 Polymorphous Rush
2 Scroll Thief
3 Sudden Storm
1 Thassa, God of the Sea
1 Triton Shorestalker
3 Triton Shorethief
1 Triton Tactics
4 Vaporkin
2 Voyage's End
2 War-Wing Siren
Sideboard:
1 Aerial Formation
1 Armory of Iroas
1 Crypsis
2 Divination
1 Guardians of Meletis
1 Hubris
1 Mnemonic Wall
1 Staff of the Mind Magus
2 Thassa's Rebuff
2 Voyage's End