Description
You can use an action while holding this hammer to speak its command word and hit an object with it that isn’t being worn or carried, as if you were hammering in a nail. To be eligible, the object can’t be more than 1 foot thick or deep (with respect to where you hit it with the hammer). When you hit the object, it becomes magically stuck to whatever other inanimate surface it was touching on the opposite side of where it was struck. The two objects remain stuck together until either of them takes damage or if a creature succeeds on a DC 16 Strength check to pull the two apart; an object can become unstuck at the GM’s discretion if enough weight or force is applied to it another way. Alternatively, if you use this property of the hammer on a fourth object, the first one becomes unstuck.
