Main deck (60)
4 Coralhelm Commander
4 Grimoire Thief
4 Harbinger of the Tides
21 Island
2 Kopala, Warden of Waves
3 Mana Leak
4 Merfolk Sovereign
4 Merrow Reejerey
3 Mist-Cloaked Herald
2 Seafloor Oracle
2 Silent Submersible
4 Silvergill Adept
3 Svyelunite Temple

Sideboard (15)
2 Annul
3 Essence Scatter
2 Kopala, Warden of Waves
1 Mana Leak
3 Negate
2 Seafloor Oracle
2 Silent Submersible