1 Lair of the Hydra
1 Acidic Slime
1 Aeve, Progenitor Ooze
1 Ancient Ooze
1 Apex Devastator
1 Bioessence Hydra
1 Biogenic Ooze
1 Bioplasm
1 Biowaste Blob
1 Bristling Hydra
1 Capricopian
1 Clockwork Hydra
1 Consuming Blob
1 Consumptive Goo
1 Corrosive Ooze
1 Corrupted Zendikon
1 Domesticated Hydra
1 Experiment Kraj
1 Experiment One
1 Feral Hydra
1 Gargos, Vicious Watcher
1 Gelatinous Cube
1 Gelatinous Genesis
1 Genesis Hydra
1 Gluttonous Slime
1 Gobbling Ooze
1 Grakmaw, Skyclave Ravager
1 Gutter Grime
1 Heroes' Bane
1 Honored Hydra
1 Hooded Hydra
1 Hungering Hydra
1 Hydra Broodmaster
1 Hydra Omnivore
1 Hydra's Growth
1 Hydroid Krasis
1 Inexorable Blob
1 Ironscale Hydra
1 Kalonian Hydra
1 Khalni Hydra
1 Lifeblood Hydra
1 Managorger Hydra
1 Manaplasm
1 Mephitic Ooze
1 Miming Slime
1 Mistcutter Hydra
1 Mitotic Slime
1 Mwonvuli Ooze
1 Mystic Genesis
1 Necroplasm
1 Necrotic Ooze
1 Nessian Wilds Ravager
1 Neverwinter Hydra
1 Ochre Jelly
1 Ooze Flux
1 Ooze Garden
1 Oran-Rief Hydra
1 Oran-Rief Ooze
1 Phyrexian Hydra
1 Phytohydra
1 Polukranos, Unchained
1 Polukranos, World Eater
1 Predator Ooze
1 Prime Speaker Vannifar
1 Primordial Hydra
1 Progenitus
1 Protean Hydra
1 Rampant Rejuvenator
1 Ramunap Hydra
1 Ravenous Slime
1 Scavenging Ooze
1 Scourge of Skola Vale
1 Slime Molding
1 Slogurk, the Overslime
1 Slurrk, All-Ingesting
1 Splitting Slime
1 Sprouting Phytohydra
1 Steelbane Hydra
1 Stumpsquall Hydra
1 The Mimeoplasm
1 Thunderous Snapper
1 Ulvenwald Hydra
1 Umori, the Collector
1 Vastwood Hydra
1 Voracious Hydra
1 Whiptongue Hydra
1 Wildwood Scourge
1 Wren's Run Hydra
1 Zaxara, the Exemplary
Sideboard: