Gracca

Gracca was a winged sapient who lived on the Floating Mountain on the moon of Endor. At some point in the early history of Bright Tree Village, an Ewok settlement on the moon, Gracca invaded the village and stole the Ewoks' magical Crystal Cloak, which gave the owner the power to make anything they touched turn into crystal. After stealing the cloak, Gracca departed back to Floating Mountain where he resided for several years, turning the creatures of the mountain into crystal statues. Eventually, the young Ewoks Wicket Wystri Warrick, Latara, Kneesaa a Jari Kintaka, and Teebo arrived on Floating Mountain to retrieve the cloak. However, all they succeeded in doing was destroying the cloak, thereby stripping Gracca of his powers. Gracca became furious and tried to destroy the young Ewok children. Unfortunately, his attack missed and ran him headlong into a forest of towering crystal which toppled upon him. Gracca was then left trapped under the massive crystals as the young Ewoks left the mountain carrying away some of its crystals.

Text and facts from the “Gracca” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.