The teacher

You follow Joseph to the second floor. Before reaching the stairs to the third, you see the same teacher from before.

"Thank you, Joseph, I'll handle it from here," she says. Joseph then leaves.
"Well, well," she says to you, "I can't believe that you beat all of my students! And they studied hard too. Well, I know you're wondering why I called you up here. I think you did such a fine job, that I should battle you myself. I have to see for myself how you beat them."

(You are challenged by Teacher Ms. Emily!)

She sends out Magnemite! (1/2)
Strengths: Water, Flying, Ice, Rock, Fairy
Weaknesses: Fire, Fighting, Ground (4x)
Immunities: Poison