HOW TO KILL HIM THE EASY WAY
Ok the easy way to kill the rancor is to look in your inventury for your synthesized ordor I sure you will have.Then go to the pile of skelitens on the otherside and click on them and put a synthesized ordor and a poison gernade in the pile a cut seen will appear and he will be dead.That is the best way I think to kill him.You don't have to used a bunch of your gernades tring to kill him just one synthesized ordor and one poison gernade and that will do it.