135 Episode 15: The Curses and the Black Taboo Part 2

Raigaki's power is unmeasurable in normal means that is why he is always being sealed. If Raigaki's power is slowly released, he will be a danger.

"Right now, Raigaki is still under the seal. According to Yaya, she has to put 20 seals on Raigaki's body to fully contain his power. Of course, his power is so immense that containing them all is impossible which is why he can still use magic. So if he managed to break all seals, he will destroy everything."

Just from listening to Godou's explanation, I can tell that Raigaki is a hidden time bomb ready to explode once his fuse is burnt out. I have seen Raigaki's ability when Yaya released one seal during the battle inside the Phantasmal Reality. What about if he got released from it? 

"Wait, if he can destroy almost everything if he is unrestrained, how did he get his seals in the first place?" I asked.