So I am trying to make a fighter of Luna for Super Smash Bros. 4 (3DS version), and I need some opinions on what kind of fighter she would be, and what moves she would have. (Also, what outfit she would have) So yeah, responding before Tuesday is preferred so I can get some practice before I fight my friend (Who has a Fluttershy fighter), so we can see who is truly best pony.

Sword for a weapon. dark colors and a tiara.

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So she should be a swordfigher, got that. Can't really customize the outfit all too much, either.
Here are the available moves.
And here are the outfits:
Cybernetic Suit
Neon Suit
Ninja Suit
Pirate Outfit
Plate Armor
Samurai Armor
Standard Outfit

3860767 Try the Plate Armor, Neutral special 3 blade fury, Side special 2 slash launcher, Up special 2 skyward slash dash, and Down special 3 power thrust.

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I'll need to unlock that armor. But that shan't take too long of just classic mode.