Sword Origamiracle

Fold into Existence. You can use an action to write the word "Sword" on this sheet of paper using any writing implement, in a language of your choice. When you do, the paper magically folds and shapes itself into a small paper sword. While holding the tiny sword, you can use a bonus action to speak a command word and transform it into a strong, full-sized sword made of magically folded and compressed paper. The longsword functions like a normal longsword in combat. You can speak the command word again to return the longsword to its small paper form. The writing is magically erased from the paper 24 hours after the activation word is written, and the sword reverts to the sheet of paper. If you take 10 or more fire damage in a single round, roll a d20. On a 1, the sword turns to ash. On any other result, it returns to the sheet of paper. Once returned to paper, it can be transformed again after 8 hours have passed.