Guardian (Breath of the Wild)
The Guardians were crafted by the ancient people of Hyrule 10,000 years prior to the events of Breath of the Wild. They were created by the thousands, to stop the powerful beast known as Ganon, along with the four Divine Beasts. Ganon was defeated, and the Guardians eventually became lost and buried far underground. 9,900 years later, the Guardians and the Divine Beasts were rediscovered by the Hyrule under the command of King Rhoam. The people brought the mechanical beasts back to life, and planned on using them to stop Ganon, when he inevitably returns. Things seemed tremendous for the Hylians; they were well prepared for Ganon, however, when he returned, things didn't quite go as planned. As the Guardians and Divine Beasts were ready to attack Ganon, he unleashed a powerful draining force which corrupted all the Guardians and Divine Beasts to be under his control. The Guardians turned against the people of Hyrule, starting with destroying Hyrule Castle Town and all its inhabitants, before wreaking havoc on the rest of Hyrule, and Ganon almost had full control of the land.
In the present day, Link awakens from the Shrine of Resurrection, with the motive to stop Ganon and save Hyrule. Guardians are littered all around the Great Plateau, most of which are non-functioning, however the rouge machine is. As Link traverses the land of Hyrule, he sees many Guardians, active and inactive, scattered everywhere. They are more prominent the closer he gets to Hyrule Castle, being stronger than ever and with a blood lust for Link.