4 Mutavault
4 Tide Shaper
4 Master of the Pearl Trident
4 Lord of Atlantis
3 Island
4 Merfolk Trickster
2 Waterlogged Grove
2 Otawara, Soaring City
4 Vodalian Hexcatcher
3 Cavern of Souls
2 Misty Rainforest
1 Breeding Pool
3 Botanical Sanctum
2 Subtlety
2 Stern Scolding
4 Tishana's Tidebinder
4 Cenote Scout
3 Svyelun of Sea and Sky
4 Aether Vial
1 Spell Pierce
Sideboard
2 Subtlety
3 Dismember
3 Force of Negation
3 Chalice of the Void
2 Harbinger of the Tides
2 Pick Your Poison