21 Island
3 Nykthos, Shrine to Nyx
3 Anticipate
3 Cloudform
4 Frost Walker
2 Hall of Triumph
4 Master of Waves
3 Mirror Mockery
4 Nullify
4 Shorecrasher Elemental
4 Stratus Dancer
3 Thassa, God of the Sea
2 Torrent Elemental
Sideboard:
1 Monastery Siege
1 Negate