Puzzle 21: The Final Exam

It’s an exam. It’s called studying and paying attention to this escape room.

This isn’t how real-life exams work either. Just write a cheat sheet. Or you know, use Google.

Absolutely not.

Alright, but consider this even worse than cheating.
(1) Transfiguration
(2) Reducio
(3) Diffindo
(4) Lethe River Water, mistletoe berries, and Valerian sprigs
(5) New moon
(6) Serpensortia