Eisen stood in front of all the Ego-Houses with his hammer in his hand. He figured out that against the ego-items, using tools rather than weapons was a rather useful solution. The others could still fight them like they normally would, but Eisen may have had a little bit of a benefit over them.
Either way, Eisen increased his size and activated his Draconic Demon King transformation, now towering over most of the buildings that could be found in this town. The moment that one of the buildings swung its hand against Eisen, the old man replied by swinging his hammer against that hand. The moment they came into contact, the hand made of stone bricks shattered into pieces immediately. After all, the force created by both the ego-house's and Eisen's movement like that was incredibly strong.
