Sideboard:
1 Admiral's Order
1 Air Elemental
1 Aquatic Incursion
1 Captivating Cave
1 Cartographer's Companion
1 Castaway's Despair
1 Cavernous Maw
1 Chart a Course
1 Compass Gnome
1 Council of Echoes
1 Fell Flagship
1 Fleet Swallower
1 Frilled Cave-Wurm
1 Gilded Sentinel
1 Gleaming Barrier
1 Grasping Current
1 Headwater Sentries
1 Herald of Secret Streams
1 Hermitic Nautilus
1 Hierophant's Chalice
1 Hornswoggle
1 Hurl into History
1 Jace's Sentinel
1 Lookout's Dispersal
1 Marauding Brinefang
1 Merfolk Cave-Diver
1 Mist-Cloaked Herald
1 One With the Wind
1 Out of Air
1 Pirate's Cutlass
1 Pirate's Prize
1 Prying Blade
1 River Herald Scout
1 Sailor of Means
1 Secrets of the Golden City
1 Shadowed Caravel
1 Shaper Apprentice
1 Sinuous Benthisaur
1 Siren Stormtamer
1 Siren's Ruse
1 Slippery Scoundrel
1 Song of Stupefaction
1 Spell Pierce
1 Spire Winder
1 Tempest Caller
1 Timestream Navigator
1 Unlucky Drop
1 Warkite Marauder
1 Waterwind Scout
1 Wind Strider