Eisen stood in front of the rock wall, with his size fully increased and his body changed through the draconic demon transformation. He held the multitool in his hand and watched as it moved its parts on its own to turn into its pickaxe mode.
Without further ado, the old man cloaked the tool in highly condensed mana so that he could properly make use of his mining ability. The one that let him break rock just through his mana alone. Eisen swung the pickaxe forward and toward the rock wall, making it immediately crack up while a few pebbles crumbled down here and there.
After the next swing of the pickaxe, more parts of the wall crumbled down, but it still mostly stood. But with the third swing, the parts that Eisen already cracked up completely dropped onto the ground in front of Eisen.