"Daring mare of mystery,
Champion of right,
Trots out of the shadows!
Mare-Do-Well owns the night!
Somewhere some villain schemes,
But it won't be swell!

(Three-two-one!)
Mare-Do-Well!
(When there's trouble, call MDW!)
Mare-Do-Well!
(Let's get mane-gerous!)
Mare-Do-Well!
(Mare-Do-, Mare-Do-Well!)

Cloud of smoke and she appears!
Mistress of surprise!
Who's that cunning mind behind
That shadowy disguise?
Nopony knows for sure,
And the bad guys, they can't tell!

Here comes Mare-Do-Well! (Look out!)
(When there's trouble, call MDW!)
Mare-Do-Well!
(Let's get mane-gerous!)
Mare-Do-Well!
(Better watch out, you bad boys!)
Mare-Do-Well!"

I will soon finally have the opportunity to play a pony character in my D&D game (courtesy of the 5E conversion for David Silver's Ponyfinder, found here: https://www.drivethrurpg.com/m/product/125583). So I decided to go with my unicorn femme fatale, Elegant Allure (hopefully as an Echo Knight Dex-based Fighter), as well as the superhero The Mysterious Mare-Do-Well, complete with theme song!

But it should definitely be noted that they are not the same pony, not at all! And they're definitely not using the same equipment, either! Ellie's shield is an "E" where MDW's is an "M". And Ellie's gear is wearing glasses, while MDW's has masks.

Totally different!

Art by  TheBlueWazaga.