Spike was tired of hearing the tales of Rarity's coltfriends, and how they amaze her. Going home sad and broken, he found a black notebook that granted him the power to kill anypony as long as he had their name and face. He made a steely resolve to protect Rarity... at any cost.

Entry to National Pony Writing Month.

When District Attorney Luna is mysteriously poisoned, Mare-Do-Well soon traces it back to Manehattan's newest supervillain, Thorn Briar, who has a past grudge with the DA...

My third Mare-Do-Well re-write of a classic Batman: The Animated Series episode, based off of "Pretty Poison." Here are the other two:

Hearth's Warming with Discord

Nothing to Fear...

When Discord escapes from Dysart Asylum on Hearth's Warming Eve, it's up to Mare-Do-Well and Draco the Dragon Wonder to stop him and save the holiday. Based off of the "Christmas with the Joker" episode of Batman: The Animated Series.

Discord returns and unleashes a deadly laughing gas onto Manehattan. When Rarity becomes a victim of this scheme, it becomes a race against time for Mare-Do-Well to stop Discord before the entire city becomes as crazy and chaotic as the draconequus himself.

My fourth Mare-Do-Well re-write of a classic Batman: The Animated Series episode. Here are the rest of them:

Hearth's Warming with Discord

Nothing to Fear...

Thorny Rose

A new villain called the Fear Shaman arrives in Manehattan and immediately starts causing trouble. It's up to Mare-Do-Well to stop her from spreading her reign of terror throughout the city. However, Twilight must first confront her own inner demons brought up by the Fear Shaman...

My second Mare-Do-Well re-write of a Batman: The Animated Series episode, this is based off of "Nothing to Fear", and is dedicated to the memory of the late Raefire, author of "Night of the Shy."

Pinkie Pie challenges her friends to play a game in which they take turns being evil, with the rest of the players tasked to thwart the evil schemes. The stakes are high, and all of Ponyville is caught in the middle...

Mare Do Well earned her place in the history books of Ponyville as one of its greatest protectors alongside the likes of Supermare and Batmare.
But Mare Do Well hung up her cape after teaching a lesson to one of the most egotistical mares in Ponyville.

So who is it on moonlit nights, that hops from rooftop to rooftop, who leaves crooks and con-stallions outside the doors of the watch-house, and who always arrives just in time?

Mare Do Well may have taught Rainbow Dash one unforgettable lesson, maybe Mare Do Better will teach her another.

A/N: This story starts after the Mare Do Well episode in season 2.
Major thanks to Twilight the Pony (previously Spark-of-Twilight) for the art (now with source!).

Waking up in an alternate universe in which you are a supervillain can be hard.

Finding out your friends are rebels trying to kill or overthrow you isn't very easy to deal with either.

But trying to solve the situation? That's a real horn cracker.

One day, Applejack happens upon a strange old journal that appears to be written by a master criminal - Black Jack the Outlaw, a mysterious stallion with powers beyond that of any normal earth pony, who terrorized Equestria with his gang of miscreants in days long past. What secrets are hidden in the pages of his old journal?

This, as well as magical mishap at Twilight's place, would trigger a series of events leading to an adventure unlike any the six pony friends have ever encountered before.

If Celestia is God, then who are her Angels? Based on Cupcakes by Sgt. Sprinkles: In the aftermath that follows the tragedy at Sugarcube Corner, the Elements of Harmony are lost and broken. However, one night, Luna visits Twilight's dreams to inform her of a powerful resurrection spell. When Dash returns, she isn't the pony that her friends remember and what's more, an 'angel' has followed her into the living realm.