It's called the Finn Sword. Basically, in the episode where Prismo is brought back to life, there's some time travel involved, and Finn causes a time paradox, causing a past version of himself to somehow turn into a sword. It had a cameo at the end of this episode, when Finn saw the vision of Bubblegum.
What about the stub on his hand, though?
Finn's arm grew back at the end of "Breezy." He has two arms again.
No, I mean the green needle left on his palm after his arm grew back?
Oh, that!
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Well, I'm not sure that's been addressed yet. I honestly couldn't tell you if it's going to come up again or not.
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Well, I'm not sure that's been addressed yet. I honestly couldn't tell you if it's going to come up again or not.
Which sword is your favorite so far?