What is the Worm Thing in Attack on Titan?
The worm thing, also known as the source of all living matter, is the parasitic creature that gave Ymir her Titan powers. It's kinda like the origin of Titans!
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That ‘worm thing’ is the Founding Titan’s spine, known as the Catalyst. It gives the power to transform into a Titan. Spooky, right?
It's the thing that made Ymir into the first Titan. Think of it as the OG Titan-maker.
The worm thing is just an overhyped plot point. It's the root of Ymir's power, if you really care.
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