4 Smuggler's Copter 4 Master of Waves 4 Merfolk Trickster 4 Harbinger of the Tides 4 Siren Stormtamer 4 Tempest Djinn 4 Thassa, God of the Sea 4 Curious Obsession 4 Wizard's Retort 2 Dive Down 22 Island Sideboard 4 Negate 1 Brazen Borrower 3 Tidebinder Mage 4 Spell Pierce 3 Sorcerous Spyglass