The Immovable Object is a 7 Mana Cost Free Paladin Weapon card from the Fractured in Alterac Valley set!
This doesn't lose Durability. Your hero takes half damage, rounded up.
Cards Relating to The Immovable Object
Type: Hero - Cost: 7 - Health: 30
Battlecry: Deal 2 damage to all enemies. Equip a 2/5 Immovable Object.