While shape-shifted into an Animated Object, you gain the following benefits.
Armor Class
Until you leave the form, your AC equals 18.
Limited Damage Threshold
Once per turn when you take less than 10 damage from a single attack or effect, you can reduce that damage to 0.
Multiattack
You can use Slam twice when you take the Attack action.
Unstoppable
You can move through the space of any creature. Moving through its space doesn't cost you extra movement, but you can't stop in the same space. If the creature is your size or smaller, it takes Bludgeoning damage equal to 2d6 plus your Wisdom modifier and has the Prone condition when you enter its space. A creature can take this damage once per turn.