The Ruined Dragon, also referred to as the Lord of Lightning, is a giant dark purple dragon encountered in the Ruined Kingdom in Super Mario Odyssey. According to Crumbleden's brochure, it is thought that the altar with the shape of his head in said location was built to talk to him or possibly confront him, with it being made to restrain the lightning. It is also implied that he is the one responsible for reducing Crumbleden to ruins. His Japanese name, "Crumbleden Dragon", indicates that the "Ruined" term in his name refers to the place he lives in rather than his physical condition.

you were captured by the Broodals and brought you to bowser, himself surrounded by Spewart, Cookatiel, Mollusque-Lanceur, Madame Broode, and Mechawiggler. After a while, you don't cooperpate with them

Spewart: Give Me Flowers from Wooded Kingdom Cookatiel: Get me some ingredients from Luncheon Kingdom Mollusque-Lanceur: Grab me some sparkling water from Seaside Kingdom Madame Broode and the broodals: Get some supplies from Cascade Kingdom Mechawiggler: Get me Power from Metro Kingdom

bowser takes you somewhere and kicks you off of his airship Lord of Lightning looks at you