When Animal Crossing: New Horizons first launched, it started a massive trend of trading villagers. Veteran Animal Crossing players typically have a specific set of villagers they like, referred to by the community as “dreamies.” However, getting these villagers by random selection could take years. When a villager is moving out of someone else’s town, players can go to their town and convince the villager to move to their town, ensuring the character’s presence in their game.

https://screenrant.com/animal-crossing-rarest-villager-hardest-spawn/