4 Drowned Catacomb
8 Island
7 Swamp
4 Watery Grave
1 Blink of an Eye
4 Brineborn Cutthroat
3 Dream Eater
4 Drown in the Loch
1 Lochmere Serpent
4 Memory Lapse
1 Merfolk Trickster
1 Notion Thief
1 Opposition Agent
4 Slitherwisp
4 Soaring Thought-Thief
4 Spectral Sailor
1 Subtlety
4 Thieves' Guild Enforcer
Sideboard:
1 Blink of an Eye
1 Fact or Fiction
2 Faerie Duelist
4 Frilled Mystic
1 Frost Breath
1 Hullbreacher
1 Murderous Rider // Swift End
4 Nightpack Ambusher
4 Omen of the Sea
4 Opt
1 Rapid Hybridization
4 Sea-Dasher Octopus
3 Snapcaster Mage
1 Vapor Snag