YMMV / Once Upon a Time S4 E12 "Darkness on the Edge of Town"

• Rescued from the Scrappy Heap: Fans were annoyed at Cruella for even being in the show at all, though Victoria Smurfitt did win some people over in her first appearance. Here she's established to have abilities as The Beastmaster, justifying her being in a fantasy setting. Her Deadpan Snarker and Trolling personality made fans love her even more.
• They Wasted a Perfectly Good Character: Chernabog - who was the literal personification of the devil from Fantasia - becomes a Monster of the Week who gets rather easily defeated. Some fans wish he could have been an arc villain instead.
• Unexpected Character: Chernabog, although the appearance of the Sorcerer's Hat (and his apprentice) prior to this could have been considered early Foreshadowing of him showing up as well.