Smile Precure- Episode 46 -

However, because Miyuki’s entire philosophy is that “smiling is contagious,” she has a unique defense: stubbornness. While the other girls remain catatonic, Miyuki forces a smile onto her tear-stained face. She challenges Joker directly, but without her team, she is overpowered. Joker doesn’t even bother transforming into a giant monster. He simply laughs at her.

Joker successfully harvests enough Bad Energy to transform the entire Earth into a desert wasteland. Smile Precure- Episode 46