19 Island
3 Mutavault
2 Brazen Borrower // Petty Theft
4 Cloudfin Raptor
4 Curious Obsession
2 Dive Down
2 Harbinger of the Tides
2 Master of Waves
4 Merfolk Trickster
4 Siren Stormtamer
3 Spell Pierce
4 Tempest Djinn
3 Thassa, God of the Sea
4 Wizard's Retort
Sideboard:
2 Jace, Architect of Thought
4 Leyline of the Void
2 Mystical Dispute
3 Negate
3 Rapid Hybridization
1 Spell Pierce