Alright...this is it. My least favorite episode out of both seasons.
...This is probably no surprise.

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The Mysterious Mare-Do-Well 
Rank Number: 49
Humor: 3
Character Development: 2
Aesthetics: 7
Originality: 3
World Building: 2
Lesson: It's okay to celebrate accomplishments, but don't start rubbing it in others' faces. ...

Okay it kind of makes sense in a way, but it's not like she was claiming she was better than everypony.

I guess a better way to put it would be: "It's natural to celebrate your accomplishments, but don't showcase them. Let your actions speak for themselves, rather than bragging about them. And if someone outshines you, act with grace and dignity." ...Yeah, that sounds about right.

Discussion/Explanation: Okay, so there was no debate over what was going to be on the 49th spot. But I have my own reasons as to why it's my least favorite out of
all of them. Having two RD-centered episodes in a row wasn't a good start for this episode. But let's start with what was good. The premise. I admit, a mysterious, costumed pony helping out when it's needed sounds fantastic on paper. But she was only made to show Rainbow Dash that being a hero isn't always about praise and whatnot. The scenes where the ponyfolk were in trouble looked very well done, especially the construction site. Lastly, it's a good lesson to learn, but in my opinion, it would have been better as a Season 1 Lesson.
But...all good things must come to an end. Rainbow Dash is a sucker for attention, I'll admit, but she goes overboard when Mare Do Well is getting all of it. She sees it as a competition, and starts contemplating starting problems just to fix them, and helping ponies who don't need it. When Rainbow Dash finally confronts Mare Do Well, and catches her, she finds out it was all of her friends, doing an act.
What? You would go so far as to make a costume, save ponies, and drive Rainbow mad, just to prove a point? Her friends tell her
at the end of all of this that what she was doing wasn't right. Instead of telling her outright, they make up some heroine to teach her a lesson. Honestly, it could have been worse. I guess the reason they stayed secret is to not get any praise themselves. But then, there's one scene where Rainbow confronts her friends before she finds out they were MDW. They all PRAISE HER for being a hero. Hypocrisy at its best, fillies and gentlecolts. I know it was just them, and it
may have been them trying to pass the hint to Rainbow Dash, but that makes no sense. She wasn't going to get the hint, since she hates MDW, and they were really subtle. Guys, if you're going to confront your friend on something she's doing that's wrong...just do it.

Overall: 3.4
Personal Take: 3
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Well, that's one episode down, 48 to go. This is going to be a
long thread.

(I honestly hope this isn't bad. I'm still new at reviews.

)