8 Island
1 Aquatic Incursion
1 Aqueous Form
1 Coralhelm Guide
1 Crashing Tide
1 Library Larcenist
1 Merfolk Looter
1 Merfolk Wayfinder
1 River Sneak
1 River's Rebuke
1 Teferi's Time Twist
1 Tempest Caller
1 Triton Shorestalker
Sideboard:
1 Aetherspouts
1 Capture Sphere
1 Consuming Tide
1 Dakra Mystic
1 Deeproot Waters
1 Divination
1 Drag Under
1 Engulf the Shore
1 Merfolk Looter
1 Merrow Reejerey
1 Military Intelligence
1 Mist-Cloaked Herald
1 Ravenform
1 Reconnaissance Mission
1 Riverwise Augur
1 Salvager of Secrets
1 Scourge of Fleets
1 Scroll Thief
1 Sea Scryer
1 Shipwreck Dowser
1 Silvergill Adept
1 Slinn Voda, the Rising Deep
1 Spell Pierce
1 Thassa's Rebuff
1 Tidal Courier
1 Tide Shaper
1 Triton Shorestalker
1 Wash Out