Lenovo

Skull Wyrm species were once Makeshift Dragons where they had lost their ability to change into their other dragonic form due to their old age and are permanently stuck with the last thing they change into. They live deep underground abandoned caverns eating any kind mammal animals/creatures living there. Using the darkened caves they aren't afraid to spook humans away with skulls and bones surrounding their home. Often using bones as sign of warning of danger nearby like themselves to get humans from finding out their real or just decoration wanting to show off their bone collection.