1 Castle Garenbrig
29 Forest
1 Karn's Bastion
1 Lair of the Hydra
1 Rogue's Passage
1 Asceticism
1 Biogenic Upgrade
1 Biomass Mutation
1 Bloom Hulk
1 Bone Sabres
1 Branching Evolution
1 Caged Sun
1 Clockwork Hydra
1 Contagion Clasp
1 Contagion Engine
1 Contortionist Troupe
1 Courage in Crisis
1 Decanter of Endless Water
1 Domesticated Hydra
1 Durable Handicraft
1 Evolution Sage
1 Explore
1 Exponential Growth
1 Feral Hydra
1 Fertilid
1 Forgotten Ancient
1 Fungal Sprouting
1 Gargos, Vicious Watcher
1 Genesis Hydra
1 Gyre Sage
1 Hardened Scales
1 Helm of the Host
1 Heroes' Bane
1 Hornbash Mentor
1 Hungering Hydra
1 Hydra Broodmaster
1 Hydra's Growth
1 Inspiring Call
1 Ironscale Hydra
1 Kalonian Hydra
1 Lifecrafter's Bestiary
1 Lifecrafter's Gift
1 Loyal Guardian
1 Managorger Hydra
1 Mycoloth
1 Nature's Embrace
1 Neverwinter Hydra
1 New Horizons
1 Nissa, Who Shakes the World
1 Nyxbloom Ancient
1 Oran-Rief Hydra
1 Overgrowth
1 Park Heights Maverick
1 Planewide Celebration
1 Primordial Hydra
1 Rampant Growth
1 Replicating Ring
1 Runadi, Behemoth Caller
1 Scavenging Ooze
1 Skyshroud Claim
1 Sol Ring
1 Sporocyst
1 Staff of Titania
1 Summer Bloom
1 The Ozolith
1 Unbound Flourishing
1 Unnatural Growth
1 Vastwood Hydra
1 Vigor
1 Visions of Dominance
1 Voracious Hydra
1 Vorinclex, Monstrous Raider
Sideboard:
1 Blessed Respite
1 Emblem: Nissa, Who Shakes the World
1 Full Flowering
10 Hydra
1 Nexos
1 Path of Ancestry
10 Saproling
1 Smell Fear
1 Verdant Embrace
1 Wild Onslaught