4 Breeding Pool
4 Forest
4 Hinterland Harbor
8 Island
2 Unclaimed Territory
4 Adventurous Impulse
4 Deeproot Elite
4 Delver of Secrets // Insectile Aberration
3 Kopala, Warden of Waves
3 Kumena, Tyrant of Orazca
4 Kumena's Speaker
4 Merfolk Mistbinder
4 Mist-Cloaked Herald
2 Negate
4 Silvergill Adept
2 Tempest Caller
Sideboard:
2 Arixmethes, Slumbering Isle
2 Exclusion Mage
1 Jadelight Ranger
4 Merfolk Branchwalker
1 River Heralds' Boon
1 Vineshaper Mystic
2 Watertrap Weaver