4 Breeding Pool
5 Forest
4 Hinterland Harbor
7 Island
4 Benthic Biomancer
3 Cancel
4 Essence Capture
2 Evolution Sage
4 Growth-Chamber Guardian
2 Herald of Secret Streams
2 Hydroid Krasis
2 Incubation Druid
4 Merfolk Skydiver
2 Narset, Parter of Veils
2 Planewide Celebration
3 Return to Nature
4 Simic Ascendancy
2 Ugin's Conjurant
Sideboard:
2 Aeromunculus
1 Jace, Arcane Strategist
2 Jace's Projection
2 Pollenbright Druid
2 Pteramander
2 Regenesis
2 Stony Strength
2 Thought Collapse