Hypnosis

Hypnosis is the ability to place somebody in a mentally receptive state that would enable them to be open to do whatever another person, usually the one who performs the hypnosis, commands them to.

Mainstream Smurfs Media
In mainstream Smurfs media, hypnosis is usually performed through the use of magic. In the cartoon show episode "The Master Smurf", the Crowns Of The Titans would enable the wearers to hypnotize anyone into doing whatever the wearer bids them to. The original wearers of the crowns, the Titans, used this ability in a long struggle that has only ended when they both realized how neither of them could get the upper hand on the other since they were both of equal power. The Crowns were then discarded, only for Miner to unearth one of them years later and for Greedy to become its wearer, hypnotizing his fellow Smurfs into doing his bidding. Papa Smurf and Gargamel both discovered that the element of water can dispel the effects of the hypnosis, and with Papa Smurf wearing the other Crown, he eventually faced off against Greedy until he made his little Smurf hang upside-down on a branch like a bat, causing the Crown to fall off his head. With Greedy no longer under the influence of the Crown, the Smurfs who were under his control were also freed.