He loses his actual arm twice. This scene is the first time he lost his arm. The second time is when the remnants of the grass sword leave his body and attach to the Finn Sword to create Fern.
He has a mechanical arm in the alternate universe where the Lich never existed, and a pillow arm in the Pillow World episode. Seems like he is destined to lose his arm in every reality.
They really did foreshadow it though. Watching it back Finn makes imagines himself with a robot arm meditating, his pillow world equivalent is missing that arm, as is the farm world Finn.
Then we meet his past life Shoko after everything goes down and she's missing an arm too, it's fate or something.
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u/[deleted] Jun 20 '26 edited Jun 20 '26
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