Thought to Be an Alien Weapon
A suspicious magazine* says that sightings of Iron Treads have been reported in one arid corner of Paldea. The magazine article also talks about Iron Treads’s ability to suddenly assume a spherical shape and launch into a swift rolling attack. Further mentioned are rumours that Iron Treads may be a weapon made from alien technology—though no one knows for sure.
*This information is written in a paranormal magazine kept at the academy. Its validity is not verified.