In your opinion. Who is the most powerful?

WARNING: Comments could contain spoilers!

Hello~ (≧∀≦)ゞ

We know that is difficult to judge since this is just the beginning from the game but... we are curious to know who you think that is the most powerful?  

You can also make us know why do you think that in the comments or in the "spoilers-minefield" channel from our Discord server.