For ten points, name this king of the Rakshasas.
When this entity refuses counsel, his younger brother Vibheeshana deserts him. After conquering the three worlds, he receives a boon from Brahma stating that no god will ever be able to defeat him. Shortly after his brother Khara and sister Soorpanakha are killed, he defeats the valiant attempts of Jataayu the eagle-king who attacks his magical chariot Pushpaka, successfully returning to Sri Lanka with his prize. For ten points, name this king of the Rakshasas.
When this entity refuses counsel, his younger brother Vibheeshana deserts him.
Raavana