For that matter, the whole Seven Wonders musical number in the finale, showing each of the Surpeme candidates preparing to perform the titular trials, showing off their powers. It really gives a sense we've come at the end of a long road.
Fiona and Marie, with some assistance from the Ax Man, butchering the directors of the Delphi Corporation.
Misty beating the living shit out of Madison. That's right, she went up to the most dangerous, most tyranny-crazed of the whole group and gave her an epic beatdown without even using any powers but the strength of her bare hands. It's every bit as epic as it sounds.
And not 5 seconds later, the Ax Man comes at them. And gets sent flying by the whole Coven.
And after that, the Coven bands together for once and gives him his secondDeath of a Thousand Cuts for killing Fiona. Note that Madison, who was killed by Fiona, actually took the initiative to kill him and begins by axing him in the stomach.
Before that, the Axe-Man's (false) killing of Fiona.
And before that, Cordelia not giving a damn if Misty beats the living daylights out of Madison. She's literally standing next to Queenie, composed, and practically approving of the situation. She really has been waiting for Madison's just desserts.
Madison: (After getting bitchslapped by Misty) Cordelia?
Cordelia: I'm good.
Kyle doing the world a huge favor by offing Madison for good. And when she tries using Crocodile Tears to convince him that she loves him?