Dojo Trivia

Does anyone know which Card-Jitsu card has the max power?

"Are you a black belt? Then you'll score high on the Ninja trivia in the Dojo." -AUNT ARCTIC

Now, what damaged the dojo's roof?

"What does Sensei say? Something about "rocking the house"? I'm sure that applies to you here." -AUNT ARCTIC

Which is the ninja that can stun?
Jazzy!