Queen Chrysalis (Friendship is Magic)

Queen Chrysalis is the former queen of the Changeling Empire and one of the most fearsome enemies to have ever threatened Equestria.

Returning menace
When attempted to alter history and prevent the formation of the Mane Six, one of her alterations resulted in an alternate timeline in which Chrysalis' forces successfully conquered Canterlot. Many Ponies escaped by fleeing into the Everfree Forest, but Chrysalis eventually discovered their hideaway by posing as. She then revealed her true form and ordered her forces to attack the settlement, engaging Zecora in a savage battle. Fortunately, this timeline was negated by the actions of Twilight Sparkle and Spike.

Eventually, Chrysalis' forces captured and replaced Celestia, Luna, Cadance, Shining Armor, the Mane Six, and Spike, with orders to collect the love of the ponies for them and share it with the rest of the hive. However, Chrysalis saw no threat in Twilight's student, who recruited , , and the reformed Changeling Thorax to help her rescue the captives. Chrysalis was initially amused by this attempt, but was caught off guard when Thorax shared his love as she attempted to drain it, causing him to transform. Many of the other Changelings soon followed his example, and Chrysalis found her enemies freed and her former subjects no longer obedient to her will. Starlight attempted to convince Chrysalis to abandon her path of conquest and join her people in their new way of life. Chrysalis rejected this offer and fled, swearing vengeance on Starlight Glimmer.

Eventually, Chrysalis hit upon a plan to use the Elements of Harmony to enslave the Ponies in order to create a new hive for herself. To that end, she took on the form of a photographer and took pictures of each of the Mane Six, as well as stealing a hair from each of them. Using these ingredients, she enacted a spell that created evil duplicates of them, hoping that they would be able to wield the Elements in her service. However, the "Mean Six" proved treacherous, attempting to take the Elements for themselves, and Chrysalis was nearly defeated by Mean Twilight Sparkle. The Tree of Harmony destroyed the false ponies, however, and Chrysalis departed, convinced that servants were of no use to her.

Legion of doom
Chrysalis eventually ended up alone in an isolated forest, her mental state decayed to the point where she addressed pieces of wood with Changeling faces carved on them as though they were alive. She was unexpectedly teleported from this place to an unknown location, where she encountered and Cozy Glow who had similarly been brought there. When appeared, Chrysalis briefly believed him responsible for gathering them, only for the true culprit to appear and announce himself as. Chrysalis recognized the legendary tyrant, but was also aware of his defeat at the hooves of Gusty the Great, for which she mocked him. Despite this, she bowed to his wishes to try and form an alliance with the other villains, especially after King Sombra's solo attempt to take over Equestria ended with his demise.

Imperious as ever, Chrysalis chafed at Grogar's delay in taking action, while her other two "allies" proved more annoying than anything else. After their disagreements came to a head, Grogar ordered the trio to retrieve his Bewitching Bell from Mount Everhoof, where Gusty had hidden it after stealing it from him. Chrysalis attempted to scale the mountain herself, but ultimately realized she needed the others, saving them from an Ophiotaurus by taking the form of another such creature and then draining its love. Having bonded over their hatred of the ponies, the three worked together to reach the summit, where Cozy convinced Chrysalis to let Tirek drain her magic with the promise that he would return it. She did so, but reacted with horror upon realizing that the three were starting to become friends; she quickly put a halt to such thoughts, and convinced the others to join her in hiding the bell rather than returning it to Grogar.

While Grogar was distracted seeking an alternative power source for his plans, Chrysalis and her comrades attempted to wield the bell's power with no success. Cozy, remembering Twilight's mention of the Canterlot Archives, convinced the other two to join her in traveling there to look for information. Upon reaching Canterlot, they found Canterlot Castle under increased security and the Last Summer Sun Celebration underway. Chrysalis quickly realized that the confusion could be used to their advantage, and adopted both her Unicorn form of Crackle Cosette and the guise of a royal guard to sow dissension. She and her comrades succeeded in retrieving a book about the bell, while also noting the ease with which they had been able to cause division between the ponies.