Meta Knight

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A prideful, brash, short-tempered, passionate, skilled, stern, and combative swordsman, who not only relies on his public image a lot but is also a well-intentioned extremist.
Strives to become the greatest warrior and swordsman in all of Dreamland.
He'll probably enjoy a good swordfight, but if his mask (the one he's wearing) comes off, away he goes. (His reliance on his public image as a stern, mysterious swordsman explains this.)
Naturally, a loner.