For the next few days, all that Eisen was really doing was trying to use his flame of the earth magic as much as he possibly could, for anything that he could. And even for things that he usually wouldn't do, but just chose to misuse his element for. After all, his element was supposed to be used like a tool. Just mass-creating it wasn't going to be enough to properly level it up.
So for example, Eisen chose to create dozens of small crucibles to constantly melt down metals, let them cool again, and then melted them again. Or he just made a perpetual water-evaporation setup, where water was in a closed container made of his element and all that happened was that Eisen made the water at the bottom boil, and then had water gather at the top of the container so that it would just start dripping down. No water was really lost like that, and Eisen could just keep going with this continuosly.
