Mono-green big-creature and +1/+1 counter ramp deck built around Runadi, Behemoth Caller. Runadi gives extra counters to creatures with mana value 5 or more when they are cast, and grants haste to anything carrying three or more counters. The list ramps hard with mana creatures, counter-scaling mana sources and land searching. It stacks counter amplifiers and doublers so that X-cost Hydras and expensive fatties enter huge, often hasty, and keep growing each turn. How it wins: Oversized, often hasty trampling creatures swing for lethal, backed by mass counter doubling and team pump, with Walking Ballista and Vigor plus a counter amplifier as an infinite-damage combo finish. Key roles: - Ramp into behemoths: Mana dorks, land ramp and counter- or power-scaling mana sources reach five-plus mana quickly, so Runadi's cast trigger fires on big threats and large X spells (Gyre Sage, Selvala, Heart of the Wilds, Castle Garenbrig). - Counter amplification: Replacement effects that add or double +1/+1 counters multiply every source of counters, including Runadi's cast bonus, pushing creatures past the three-counter haste threshold (Hardened Scales, Doubling Season, Branching Evolution). - Scaling Hydras and counter engines: X-cost and self-growing creatures, plus recurring team-wide counter placement, turn the amplifiers into an exponentially growing board (Kalonian Hydra, Ouroboroid, Court of Garenbrig). - Counter-fueled card advantage: Draw engines key off putting counters on creatures or off large creatures entering and connecting, refilling the hand to keep deploying threats (Terrasymbiosis, Garruk's Uprising, Inspiring Call). - Trample and pump finishers: Team-wide trample, mass pump and damage spreaders turn huge bodies into lethal damage through blockers (Overwhelming Stampede, Surrak and Goreclaw, Hydra Omnivore). - Fight removal and combo kill: Fight spells use the oversized creatures as removal. Vigor converts Walking Ballista's self-pings into more counters under an amplifier, giving infinite damage (Vigor, Walking Ballista, Khalni Ambush).

Hail Hydras! decklist

• Bala Ged Recovery // Bala Ged Sanctuary
• Beast Within
• Benevolent Hydra
• Biosynthic Burst
• Birds of Paradise
• Branching Evolution
• Bridgeworks Battle // Tanglespan Bridgeworks
• Burgeoning
• Bushwhack
• Canopy Gargantuan
• Castle Garenbrig
• Collective Resistance
• Court of Garenbrig
• Crop Rotation
• Cultivate
• Dancing from Dark to Dawn
• Delighted Halfling
• Disciple of Freyalise // Garden of Freyalise
• Doubling Season
• Entish Restoration
• Ezuri's Predation
• Fanatic of Rhonas
• Gaea's Touch
• Gargos, Vicious Watcher
• Garruk's Uprising
• Goldvein Hydra
• Gyre Sage
• Hardened Scales
• Herd Heirloom
• Heroic Intervention
• Hungering Hydra
• Hunter's Insight
• Hydra Omnivore
• Innkeeper's Talent
• Inspiring Call
• Kalonian Hydra
• Kami of Whispered Hopes
• Khalni Ambush // Khalni Territory
• Leyline of Abundance
• Lifeblood Hydra
• Llanowar Reborn
• Llanowar Tribe
• Managorger Hydra
• Mossborn Hydra
• Mosswort Bridge
• Oran-Rief, the Vastwood
• Ouroboroid
• Overwhelming Stampede
• Protean Hydra
• Quilled Greatwurm
• Radagast of Rhosgobel
• Nature's Claim
• Rampant Growth
• Reliquary Tower
• Rishkar, Peema Renegade
• Selvala, Heart of the Wilds
• Sol Ring
• Steelbane Hydra
• Surrak and Goreclaw
• Terrasymbiosis
• The Earth Crystal
• Veil of Summer
• Walking Ballista
• Worldspine Wurm
• Yeva, Nature's Herald
• Warden of the Grove
• Rampant Rejuvenator
• Vigor
• Return to Nature
• 30× Forest