2 Evolving Wilds
5 Forest
2 Hashep Oasis
2 Ipnu Rivulet
7 Island
2 Unclaimed Territory
4 Woodland Stream
2 Ambuscade
4 Deeproot Elite
2 Herald of Secret Streams
4 Kumena's Speaker
4 Merfolk Mistbinder
4 Mist-Cloaked Herald
2 Negate
2 River Heralds' Boon
4 River Sneak
3 Silvergill Adept
1 Siren Stormtamer
2 Unsummon
2 Vineshaper Mystic
Sideboard:
2 Ambuscade
4 Blossoming Defense
3 Cartouche of Knowledge
4 Crushing Canopy
1 Herald of Secret Streams
3 Merfolk Branchwalker
2 Negate
2 River Heralds' Boon
2 Seafloor Oracle
3 Tempest Caller
2 Unsummon