"A hundred billion? That's quite steep. Can't you do the same thing with your connection with them?" Aina asked.
Every beast and master had a connection between them, this formation just seemed like an unnecessary step. In addition, they already likely had to allocate a 100 billion to the Innate Node fusion method, so they had to be cautious with what they spent the rest of their Demon Points on.
"There's a connection between beast and master, yes, but it's quite vague. For example, I can't understand exactly what Little Blackstar is saying, I can only try to decipher it based on the emotions he's sending my way. Sending something as complicated as a Mantra would be impossible.