Hydia

Evil-doer
Full Name	Hydia
Alias	N/A
Origin	My Little Pony: The Movie
Occupation	Witch
Powers / Skills	Vast Magical Powers
Hobby	Abusing Her Daughters, Bullying The Residents of Ponyville
Goals	To Destroy The Ponies
Crimes	No information
Type of Villain	Outright Villain / Witch

Hydia is the main antagonist of My Little Pony: The Movie - which was based on the original toyline franchise, which was very different from the current version of the show and more akin to what people associate Care Bears and other "kid-friendly" franchises as being.

Despite this Hydia was depicted as a genuinely malicious villain who had a stereotypical "wicked" demeneor and sought to utterly ruin the world around herself as well as abuse everything for no reason other than she could, she was also apparently part of a long legacy of witches and warlocks who glorified being wicked for no reason other than they could.

Hydia was especially abusive towards her two daughters, to the point of punishing them for calling her "mommy" - a short-tempered crone and all-around nasty woman she lived within a volcano and cast many evil spells in her eternal crusade against all things "nice".

My Little Pony Song "Evil Like Me"

Ultimately Hydia's plans would see her raise the abomination known as the Smooze, a gargantuan slime-monster that was almost unstoppable and very nearly destroyed all of Ponyville - however in the end Hydia was defeated and both she and her daughters were cast back into the volcano but would return in Fall of Flutter Valley.

End of Flutter Valley

Sometime after the events of the movie, Hydia would return and ally with a group of giant bees to exact revenge on the ponies for her previous defeat - causing great chaos in what would be a 10-part episode of the My Little Pony TV series. In the end, her plans were foiled and the Flutter Ponies blew her and her daughters away to parts unknown. As the witches have not been seen since, and the Flutter Ponies would make sure they never tried anything again, they are most likely either dead or imprisoned.

The End of Flutter Valley shows how evil Hydia can truly be as she allied with another villain to steal the Sunstone, which would literally cause Flutter Valley to die - allowing Hydia to take over the barren wasteland (which she preferred, detesting anything that resembled beauty or kindness).