How do I overthrow Bojon (part two for both solutions)

Hint 1 of 9:

You know where he gets his power, don't you?

Hint 2 of 9:

Maybe you could take back the scroll.

Hint 3 of 9:

What if you got someone to help you fight him.

Hint 4 of 9:

Sardar will do it with enough motivation.

Hint 5 of 9:

Try saying the following: