Su was bringing the elemental mana crystals over at a faster and faster rate. At some point, she had given up on just bringing one or two and was now taking armfuls of them from the storage area attached to the forge.
The spirit mark was pulling all of the natural mana that Walker fused in to it as if it had never been given mana before. The amount of mana that had already been consumed was by no means small, yet, there were no signs of it stopping.
"Leader, that was the last of them." Su was standing with a stack of empty crates next to him. She was shaking her head and pointing to them along with the empty looking storage addition. "You used them all, we have shards though." Walker had not even noticed all of this. There were countless mana crystal shards around him.