Wonder Trade

Wonder Trade (Japanese: ミラクル Miracle Exchange) is a feature introduced in Pokémon X and Y that allows players to randomly trade with another player using the feature.

Wonder Trade is accessed from the first menu of the Player Search System (in Generation VI) or from the trade menu of Festival Plaza (in Generation VII). Players choose their own Pokémon to trade, the system searches for a Wonder Trade partner, then trades the Pokémon. Wonder Trading will give the player Poké Miles depending on how far the other player Wonder Trading with them is from their location; the farther the other player, the more Poké Miles will be earned. Anyone traded with will be added to the Acquaintances section of the PSS.

Like regular trading, Wonder Trading can trigger trade evolutions.

Untradeable Pokémon
Pokémon Eggs, Cosplay Pikachu, and Pokémon with Mega Stones, colored orbs, and special Ribbons cannot be traded. Pokémon which have their Hidden Ability, but cannot legitimately have it, cannot be Wonder Traded. Attempting a Wonder Trade while either of these conditions are true will result in a 'partner not found' message. In case of Cosplay Pikachu or a Pokémon with a Classic, Premier, or Birthday Ribbons, a message: "It's a special Pokémon. You cannot trade it!" will show.

Pokémon with moves or items introduced in Pokémon Omega Ruby and Alpha Sapphire cannot be Wonder Traded to Pokémon X and Y; a player trading a Pokémon with items or moves from Pokémon Omega Ruby and Alpha Sapphire will never be matched with Pokémon X and Y. However, if a Pokémon in Pokémon Omega Ruby or Alpha Sapphire is Wonder Traded, and that Pokémon only has moves and items that exist in Pokémon X and Y, it can be matched with Pokémon X and Y. In Pokémon Ultra Sun and Ultra Moon,, , , , with the  ability and Dusk  cannot be Wonder Traded.

In other languages
Scambio Prodigioso 奇迹交换