Main deck (60) 4 Coralhelm Commander 4 Curious Obsession 4 Cursecatcher 3 Deeproot Waters 2 Dive Down 19 Island 4 Master of the Pearl Trident 4 Merfolk Sovereign 4 Merrow Reejerey 4 Mist-Cloaked Herald 4 Silvergill Adept 4 Vapor Snag Sideboard (15) 2 Dive Down 4 Essence Capture 2 Miscast 3 Negate 2 Sea's Claim 2 Tormod's Crypt