Unicorn

A unicorn is a mythical horse with a single horn that sticks out of its head.

Mainstream Smurfs Media
In the Smurfs cartoon show universe, wizards and kings have sought after unicorns because their horns have the magic power to purify anything they touch, with the possible addition of granting wishes to those who rub the horns.

Unicorns were first seen in the episode "All's Smurfy That Ends Smurfy" as the mounts that Prince Garth and his fairy cavaliers are riding on.

In the cartoon show episode "Smurfing The Unicorns", the Smurfs were looking for a unicorn that has the power in its horn to cure a tainted pond that Puppy had drank from.

In the 2011 Smurfs movie, Smurfette saw a shelf full of stuffed unicorn toys and believed that that's where all the unicorns had gone to.