Here's my character Kingston the Fox in his Fire Form Stage 2, that is his true form as well. In this stage, he can produce a very powerful fire sword. When he is already holding a sword, he can turn it into one as well. While he is using it in fire form, it can break through any metal, he can even make it flexible to attack enemies easily. Even if he wore off his fire form, he still can use it, but it will have less power.
