Creature (29)

• 1x  Ancient Hydra
• 1x  Apocalypse Hydra
• 1x  Balduvian Hydra
• 1x  Clockwork Hydra
• 1x  Feral Hydra
• 1x  Genesis Hydra
• 1x  Heroes' Bane
• 1x  Hooded Hydra
• 1x  Hydra Broodmaster
• 1x  Hydra Omnivore
• 1x  Kalonian Hydra
• 1x  Khalni Hydra
• 1x  Lifeblood Hydra
• 1x  Managorger Hydra
• 1x  Mistcutter Hydra
• 1x  Molten Hydra
• 1x  Nessian Wilds Ravager
• 1x  Oran-Rief Hydra
• 1x  Phyrexian Hydra
• 1x  Polukranos, World Eater
• 1x  Primordial Hydra
• 1x  Protean Hydra
• 1x  Rock Hydra
• 1x  Savageborn Hydra
• 1x  Scourge of Skola Vale
• 1x  Spitting Hydra
• 1x  Sprouting Phytohydra
• 1x  Ulvenwald Hydra
• 1x  Vastwood Hydra

Land (30)

• 15x  Forest
• 15x  Mountain