Deck
3 Aether Vial
2 Cavern of Souls
3 Counterspell
2 Flare of Denial
3 Floodpits Drowner
3 Force of Negation
4 Glasspool Mimic // Glasspool Shore
4 Harbinger of the Seas
2 Harmonized Trio // Brainstorm
7 Island
2 Lord of Atlantis
4 Master of the Pearl Trident
2 Mindspring Merfolk
2 Mutavault
1 Otawara, Soaring City
4 Sink into Stupor // Soporific Springs
3 Svyelun of Sea and Sky
3 Tide Shaper
3 Tishana's Tidebinder
3 Vodalian Hexcatcher
1 Waterlogged Grove

Sideboard
1 Chalice of the Void
2 Champions of the Shoal
4 Consign to Memory
2 Mystical Dispute
4 Stern Scolding
2 Umezawa's Jitte