What is the name of the sword that Jing Tian later used to kill the Evil Sword Immortal in "Legend of Sword and Fairy 3"?

Hunyuan Earth Spirit Sword~~~

———I saw it on an official website, the exact same sword~~~ It seems to be because the ultimate move of the magic sword is called "Hunyuan" "Yuan Di Ling Zhan" "So it's called this.

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