4 Castle Vantress
12 Island
4 Mystic Sanctuary
4 Benthic Biomancer
4 Lord of Atlantis
4 Master of the Pearl Trident
4 Merfolk Trickster
4 Negate
4 Paradise Mantle
4 Puresight Merrow
4 Silvergill Adept
4 Spreading Seas
4 Thassa's Oracle
Sideboard:
4 Deprive
4 Kopala, Warden of Waves
4 Relic of Progenitus
3 Repeal