20 Island
3 Mutavault
4 Cloudfin Raptor
4 Curious Obsession
2 Dive Down
2 Harbinger of the Tides
4 Master of Waves
2 Mausoleum Wanderer
4 Merfolk Trickster
4 Siren Stormtamer
2 Smuggler's Copter
1 Spell Pierce
1 Stratus Dancer
4 Tempest Djinn
3 Thassa, God of the Sea
Sideboard:
1 Annul
1 Cerulean Drake
1 Dive Down
1 Harbinger of the Tides
2 Mystical Dispute
2 Spell Pierce
1 Stolen by the Fae
4 Tidebinder Mage
2 Unsubstantiate