Weirdsister College - Season 1 Episode 5 All That Jazz

Professor Thunderblast casts a spell on her students in order to boost their magical energy, so they can have more with which to practice. Through an "accident" of Ethel, Millie ends up with far too much magical energy, and begins casting spells subconsciously. Dr. Wendle warns Millie to remain in solitary meditation until the effects wear off, but Nick Hobbes has other plans. Meanwhile, Professor Thunderblast agrees to fill in at Misery's for a jazz band who have cancelled at the last minute.