Leviathan Hydra

When Leviathan Hydra enters the battlefield, each opponent sacrifices a creature without indestructible of your choice. If an opponent is unable to sacrifice a creature in this way, they instead sacrifice a land of their choice.
Whenever a spell is played that would cause Leviathan Hydra to fight another creature, all creatures your opponents control lose indestructible and hexproof until that spell resolves.