The Sorcerer Hat is the magical item and source to most of Yen Sid and Mickey Mouse's powers. The hat is for magical use and with it one can be very powerful. In the wrong hands, the hat can be a deadly weapon as well as very dangerous and life threatening. The Sorcerer Hat has become a very popular Disney icon, and can often be seen in Disney media and entertainment.
In Mickey's House of Villains, Mickey uses the hat's power to battle Jafar during the climax. After deflecting several hat-induced attacks from Mickey, Jafar knocks the hat off of Mickey's head, but Aladdin comes to the rescue and gives Mickey the lamp which sucked Jafar in.
The Hat makes a cameo appearance in Mickey's 60th Birthday. The hat was used by Mickey Mouse when he uses the magic and fixes all the mess on stage that Roger Rabbit caused. It was later used by a Scorcerer (who was not Yen Sid) named The Wizard, when he told him not to use it and warned him to uses his own magic instead of someone else's, he uses the hat and his magic powers to put a spell on Mickey.
In the episode "Cedric's Apprentice", Princess Sofia wears a similar shaped hat in glittery purple while learning magic beside the royal sorcerer Cedric for her sorcery test at Royal Prep. Sofia's sorcerer hat wouldn't be seen again until the second season in "The Enchanted Feast" where upon looking into Morpho Mirrors, Sofia could see different reflections of herself wearing different outfits, including her sorcerer robes and hat.
The Sorcerer's Hat is a pointed hat that when worn or used allows the owner to wield unlimited power. The Sorcerer's Hat is kept in a box that can be opened by a person that isn't consumed by evil or darkness and is kept under the watchful eye of The Apprentice. When Zoso attempted to acquire the Sorcerer's Hat, he was defeated by a mysterious protection shield. The Apprentice then tells Zoso that the box cannot be opened by someone who has accepted darkness in their heart. Zoso vanishes and the Apprentice says that no Dark One will ever open the box.
The Sorcerer's Hat has become an obsession for Rumplestiltskin in the Enchanted Forest,he was able to possess it through getting Anna to face up to her darkness when he threatened to lock her up in a tower and this would mean she would never she her sister Elsa again so she was going to kill Rumpelstiltskin but her love of Elsa made her do the right thing and a tear from her eye was collected on the dagger so Rumpelstiltskin could use it but Anna managed to get hold of his Dagger and force him to give her the hat after he was bitten by the Apprentice and in Storybrooke, Mr. Gold has the item in possession and has gone to great lengths to use it, with the Apprentice being his first victim by sending him into the hat's vortex. It is later discovered that Elsa. When Ingrid (now Sarah) in Storybrooke saw Gold with the Sorcerer's Hat, he told her that he has the leverage that she wanted.
Gold would later use the Sorcerer's Hat on Emma in order to take her powers away but was thwarted by Elsa before it could happen, which was followed by using it successfully on the fairies while they were trying to come up with a spell to stop The Snow Queen from enacting the Spell of Shattered Sight on Storybrooke. Gold hoped that by absorbing magic from others, this would free him of the Dark One's Dagger and escape Storybrooke. Just as he almost succeeded in doing so, Belle saw through his deception and used the dagger on him, which resulted in his exile from Storybrooke leaving behind the Sorcerer's Hat.
Due to Gold's manipulations, not only were the fairies released, but the powerful demon Chernabog as well. At that point, it was revealed that the hat could only suck in magical beings once. An annoyed Emma compared the hat's ability to trap magical beings to the chicken pox.
With the help of the Blue Fairy, the Apprentice, is released.
The Hat is later seen when the Apprentice uses his power to pull the darkness out of Gold and transfers it into the Sorcerer’s Hat. However, the hat is unable to contain the darkness and it is unleashed into the Apprentice.