Gravis' will and lightning manifested as it heard its oath. His lightning went wild and showed its support. Lightning struck everything that came close to it, and this Heaven had dared to suppress it!
Gravis' Will-Aura exploded as he created this solemn vow. He was not swearing on the name of anyone else, which was different from how normal cultivators swore oaths. Gravis had sworn on his life, and his lightning would force him to uphold this oath.
Even if this Heaven would kill every single loved one in Gravis' life, he would still be forced to fight it or perish. His lightning would never allow him to back out of an oath, no matter what happened. Even if this Heaven begged on all of its limbs and gave Gravis supreme power, if he let it live, he would still be forced to attack it.
