1 Cavern of Souls
18 Island
1 Augur of Bolas
1 Brineborn Cutthroat
1 Coralhelm Commander
1 Counterspell
1 Cyclonic Rift
1 Deeproot Waters
1 Gitaxian Probe
1 Harbinger of the Tides
1 Kopala, Warden of Waves
1 Lord of Atlantis
1 Lullmage Mentor
1 Mana Leak
1 Master of the Pearl Trident
1 Merfolk Sovereign
1 Merfolk Trickster
1 Merrow Commerce
1 Merrow Reejerey
1 Mist-Cloaked Herald
1 Mistcaller
1 Negate
1 Pongify
1 Rapid Hybridization
1 Repeal
1 Silvergill Adept
1 Spreading Seas
1 Stonybrook Banneret
1 Thassa, God of the Sea
1 Tidal Warrior
1 True-Name Nemesis
1 Unsubstantiate
1 Wizard's Retort
Sideboard: