Zuko could Thanos snap people, but Azula had something just as good.
"…You've beaten me at my own game," Long Feng conceded, kneeling before her throne. Azula crossed her legs and leaned back as her new Dai Li servants brought her a hot towel. Another acted as a human footrest, and a third offered her a platter of My Little Pony DVDs, which she declined with a wave of the hand.
"Bitchboy, you're playing ping pong using an old shoe as a paddle, and I'm out here sweeping Wimbledon," Azula said. "We are not the same. Dai Li, bring his ass over here."
The pair of Dai Li agents thrust Long Feng forward, and he fell on his face at Azula's feet. She reached down and placed a hand on his forehead like she was about to Amon away his bending (seriously, did they just never explain how Amon could do that?)
Instead, a transformation took place. A blinding light shooting out from his body, Long Feng shrank and compressed like he'd been put in a trash compactor where he belonged. When the light faded, he was no longer Long Feng.
He was Short Feng.
"Have fun being a manlet for the rest of your life," Azula said, waving him away along with a 3OH!3 CD that another Dai Li offered her.
Short Feng screamed as the Dai Li dragged him away. Meanwhile, Azula accepted from her servant the femur of a kangaroo. Perhaps this would allow her to maintain her powers until next time she needed them…