"True Spirit Body…" Noel sucked a cold breath. Hearing the explanation alone already told him how powerful the ability was. However, there was one thing that made him doubt about this ability. "Why are you telling me about this ability? Heisk is not even a Humanoid Spirit."
"First of all, you have to evolve Heisk to that rank before continuing until your spirit has a mutation. It means that Heisk will be able to use that ability, synchronizing it with you.
"Of course, the requirement of this ability is not just that. It's basically burning away your Spiritual Energy, so if you want to use it for a while, you have to reach at least Spirit Grandmaster."
"Spirit Grandmaster!" Noel widened his eyes in shock. "Are you kidding me? I am not even a Spirit Wielder."
"It's a long term project. Well, I know this information from the Dark Butterfly Spirit in my sister's body."
"Was that why Ardagan was reacting to her?"
"I think?"