The GARM Golem

Legend 26 - GARM: There shall come a time when a great Golem shall be made and in its essence shall come the Will of GARM, and it shall move across the worlds with the cry of revenge against those who have stood against us...and they shall be but herds for the nourishment of Garm...
Just a myth designed to frighten your childred with - if it weren't for the fact that the Lizardmen appear to have gone to a great deal of trouble to recover a hand from the Vale of Vendor that may be part of it: the Lizardmen had excavated a metal or hard stone hand, about 6’ from wrist to middle finger tip. It was not mithril, and gave off no trace of magic.Zoom 2021-12-21 21:00
Legend 82 - A tale of the Calamar also tells of a terrible magical construct - there may be a connection.