Constructed Nature. An animated object doesn't require air, food, drink, or sleep.
The magic that animates an object is dispelled when the construct drops to 0 hit points. An animated object reduced to 0 hit points becomes inanimate and is too damaged to be of much use or value to anyone.
Antimagic Susceptibility. The hut is incapacitated while the magic gem that animates it is in the area of an antimagic field. If targeted by dispel magic, the hut must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.
Siege Monster. The hut deals double damage to objects and structures.
Multiattack. The hut makes three attacks with its roots. It can replace one of these attacks with a rock attack.
Root. Melee Weapon Attack: +12 to hit, reach 60 ft., one target. Hit:30 (4d10 + 8) bludgeoning damage.
Rock. Ranged Weapon Attack: +12 to hit, range 120 ft., one target. Hit:21 (3d8 + 8) bludgeoning damage.
Baba Lysaga built a hut atop the rotting stump of a giant tree that was felled long ago. It was only after she embedded a magic gemstone in the hut that the whole thing was imbued with a semblance of life. When she wills it to do so, the hut pulls its gigantic roots free of the earth and shambles around like a spidery behemoth, shaking the ground with every step. The hut attacks with its flailing and stomping roots. It can also use its roots to fling large rocks.