Sylveon’s ribbon-like feelers emit a soothing aura that erases any sense of hostility, enabling it to stop fights instantly. As mentioned in the Sleep Style Dex, Sylveon’s soothing aura can allow any nearby Trainers to obtain a good night sleep whenever they go to sleep. When hunting, it swirls its feelers as a distraction while the aura weakens feelings of hostility in its prey, then it pounces on the victim. It will also wrap its feelers around its Trainer’s arm as they walk together, which allows it to read their feelings. When a fight breaks out between Sylveon and Dragon-type Pokémon, Sylveon will bravely charge at them even if they are much bigger than itself; in Galar, this feat is told as a fairy tale.

https://bulbapedia.bulbagarden.net/wiki/Sylveon_(Pokémon)

Nah, a real Sylveon is more terrifying.