Devastator
From the Encyclopedia of Speculative Fiction - http://encyclopedia.wizards.pro
The Devastator was an Imperial-class Star Destroyer, the flagship of Lord Tion, where it saw heavy action eliminating Rebel outposts and in the pacification of Ralltiir.
It was then assigned to Darth Vader prior to the completion of the Executor. It was this ship that captured the Tantive IV at Tatooine but it is believed it was immediately intercepted by Rebel X-wings from the planet.
Rookie One and Ru Murleen succeeded a serious blow to the ship, but it seems that it was restored and returned to action.
Vader transferred his command to the Executor, but the Devastator remained a part of his roving, Rebel-hunting Death Squadron, and participated at the Battle of Hoth. The Devastator was finally destroyed during the events of the Battle of Endor, apparently by concentrated starfighter attack.
Appearances
Behind the Scenes
The game Star Wars: Rebel Assault indicates that the rebels attacked the Devastator after the Tantive IV incident above Tatooine and were successful in hitting it. Either it was a different ship, or it could be just an albeit serious, non-fatal damage, so the ship recovered before appearing again in action.