1 Breeding Pool
1 Island
4 Misty Rainforest
2 Overgrown Tomb
4 Polluted Delta
1 Swamp
4 Verdant Catacombs
3 Watery Grave
4 Creeping Chill
4 Gravecrawler
4 Hedron Crab
3 Ledger Shredder
4 Merfolk Secretkeeper // Venture Deeper
3 Narcomoeba
4 Otherworldly Gaze
4 Prized Amalgam
1 Rotting Rats
4 Stitcher's Supplier
4 Vengevine
1 Wonder
Sideboard:
1 Feed the Swarm
4 Force of Negation
3 Leyline of the Void
3 Nature's Claim
2 Subtlety
2 Thoughtseize