Main deck (60) 4 Aether Vial 4 Benthic Biomancer 1 Cavern of Souls 4 Deprive 2 Harbinger of the Tides 14 Island 4 Lord of Atlantis 4 Master of the Pearl Trident 4 Master of Waves 4 Merfolk Trickster 4 Mutavault 1 Oboro, Palace in the Clouds 4 Silvergill Adept 2 Spell Pierce 4 Spreading Seas Sideboard (15) 2 Chalice of the Void 1 Dismember 2 Echoing Truth 3 Hurkyl's Recall 1 Kira, Great Glass-Spinner 2 Mistcaller 2 Relic of Progenitus 1 Spellskite 1 Tidebinder Mage