20 Island
4 Mutavault
2 Brazen Borrower // Petty Theft
4 Harbinger of the Tides
4 Master of Waves
4 Mausoleum Wanderer
4 Merfolk Trickster
4 Siren Stormtamer
4 Smuggler's Copter
2 Stubborn Denial
4 Tempest Djinn
4 Thassa, God of the Sea
Sideboard:
1 Disdainful Stroke
2 Entrancing Melody
2 Jace, Architect of Thought
2 Negate
2 Rapid Hybridization
2 Spell Pierce
4 Tidebinder Mage