5. "If I Can't Reach You / Let My Song Teach You" (episode 4)
The moment that the coven began playing the Lorna Wu version of "The Ballad of the Witches' Road", I knew I was going to love it. There was no other outcome to that scenario, as Kathryn Hahn, Ali Ahn, Patti LuPone, Sasheer Zamata, and Joe Locke belted out some absolutely epic vocals - as literal fire fell from the ceiling! - in a moment that gave the iconic performance scene of the original ballad a run for its money.
If the purpose of each trial episode is to showcase the witch at the center of it, then you might not find a better example of it than "If I Can't Reach You / Let My Song Teach You". Just as Alice Wu-Gulliver belts out those very lyrics in honor of her mother Lorna Wu, the episode honors her by highlighting her power through all of the struggles that she has had to endure. It also dives deep into the curse that has been haunting her family for far too long, presenting her with an epic way of defeating it: Through song. She does it magnificently.
The episode was also pretty pivotal for other characters too, particularly because it brought Rio Vidal down to the Witches' Road and placed the spotlight on her history with Agatha. We learned a little more about why they don't particularly get along - and why, underneath all of that faux hatred and very real heartache, there might actually be some love there.
One of its most powerful moments, however, came when Teen was injured and Agatha, of all people, was leading the charge to save his life. She may have been secretly hoping he was really her son, but she was also bonding with him at an unusually quick rate; making her genuinely fearful that she might lose him (and that history might repeat itself) in a sequence that is weighted in so much that is left unsaid. It's honestly one of the best scenes in the episode and it holds up even better on rewatch because it hides a multitude of teases about future reveals. That's how to build up a mystery.