Flora, Fauna and Merryweather, known collectively as the Three Good Fairies, first appeared in Sleeping Beauty.
Flora dresses in red, and appears to be the leader of the group. She seems to deal heavily with flowers and nature, based on dialogue, and her favorite color is pink. Fauna dresses in green. She appears to be quieter than the others, and often functions as a peacemaker between Flora and Merryweather. Merryweather dresses in blue, her favorite color. She is feisty and pessimisstic, and is often seen arguing with Flora.
As a group, they all have powerful magical abilities, channeled by their wands. They can do many things, such as shrinking, bringing inanimate objects to life, and putting people to sleep. Their wings, naturally, allow them to fly. Flora and Fauna stated that they could only do good things with their magic, which seems to be contradicted by Merryweather turning Diablo into stone. However, as Diablo was evil and worked willingly for Maleficent, it can actually be interpreted as a "good thing".
Though their magic was stated to be secondary to Maleficent in raw power, they were capable of granting people extremely powerful weapons of righteousness, which could triumph over the darkest of evil, as seen when they gave Prince Philip the Shield of Virtue and the Sword of Truth. In the final fight between Philip and Maleficent (who had taken on the shape of a terrifying, fire-breathing dragon), they blessed Philip's Sword of Truth with their magic, empowering it so that it could kill evil with one true, right, accurate blow.
Flora, Fauna, and Merryweather first appear as the invited guests of King Stefan at Aurora's christening. Each fairy intends to give a gift to Princess Aurora. Flora grants her the gift of beauty, while Fauna grants her the gift of song. But before Merryweather can give her gift, Maleficent appears. Insulted by her lack of invitation, Maleficent curses the infant to die at 16 years old, from pricking her finger on a spinning wheel spindle. As Maleficent leaves, the fairies realize that Merryweather still hasn't given her gift. Though, Merryweather cannot reverse the curse, she does weaken it, so that Aurora will only fall asleep until awaken by True Love's Kiss.
Deciding that Aurora is still in danger, they decide to raise Aurora themselves. An agreement with Stefan is reached: the fairies will raise Aurora for 16 years, until the curse is no longer a threat, and then return her to the palace. They change the girl's name to Briar Rose, and hide her in a cottage in the woods. The fairies then decide to hide as mortals, as their magic will raise attention, and disguise themselves as Briar Rose's aunts.
16 years later, the fairies prepare a party for Briar Rose on her birthday. After failing in their attempts to bake a cake and sew a dress normally, they decide to use magic after closing off every crack. However, Flora and Merryweather get into an argument over the color of the dress, and the magic blasts fly up the chimney and alert Maleficent's henchman, Diablo. Later on, Briar Rose, who has returned home from berry picking, is surprised. When she tells her "aunts" about the man she met in the woods, they forbid her from seeing him. The fairies reveal her true identity as Princess Aurora, as well as the fact that she is already betrothed.
The fairies take Aurora back to her father, and take her to a room. After using magic to create a tiara for her, they choose to leave her alone for some time, to allow her time to become used to the revelation. They return find that Maleficent has taken the opportunity to enchant Aurora into triggering the curse. The fairies decide to make everyone in the castle fall asleep until Aurora awakens. However, when putting King Hubert to sleep, Flora learns that the man Aurora met in the woods was actually her betrothed, Prince Philip. Philip had intended to go to the cottage to meet Aurora, and so the fairies race home to discover that Philip has been captured by Maleficent.
The fairies sneak into her hideout, and free Philip from the dungeon. They arm him with the magical Sword of Truth and Shield of Virtue, and guide him back to Stefan's castle so that he can break Aurora's curse. Along the way, the aid him by protecting him from various obstacles. At the climax, when Philip is fighting Maleficent in dragon form, the fairies enchant his sword, so that he is able to throw it straight into the dragon's heart, killing it. The three fairies later watch happily as Philip and Aurora dance at her homecoming party. Flora notices that Aurora's dress is blue, and uses magic to turn it pink. This upsets Merryweather, and leads to another argument.
The Three fairies reappear in the first Sleeping Beauty story scince the original. In the film the fairies all want to make a dress for Aurora but Aurora wants a dress but picking the color is the one that might hurt thier feelings.
Role in the series
The 3 good fairies are members of Oberon's Court of Fair Folk, and also the High Council of Heroes. They were among the original sorcerors that defeated Chernabog in the first Cartoonian War. they had made camieos in Spongebob's adventures of Kung fu panda and Spongebob and Friends meet Hercules to help shifu defeat Maleficent.