Main deck (60) 2 Brazen Borrower 4 Cloudfin Raptor 4 Curious Obsession 2 Harbinger of the Tides 23 Island 3 Master of Waves 4 Merfolk Trickster 4 Siren Stormtamer 4 Tempest Djinn 2 Thassa, God of the Sea 4 Tidebinder Mage 4 Wizard's Retort Sideboard (15) 3 Aether Gust 2 Ashiok, Dream Render 2 Gadwick, the Wizened 2 Harbinger of the Tides 2 Jace, Memory Adept 1 Mystical Dispute 1 Negate 2 Spell Pierce