All you need is 2 snapper scrolls to glitch through 2 doors, 1 more snapper scroll for getting to water mages quickly, 1 ice block and 1 summon skeleton to kill Raven, 1 ice wave to freeze his guards while you escape. Stay away from NPCs while in snapper form, otherwise they'll become hostile. Before praying to upgrade the claw make sure your 1-handed skill is greater than the 2-handed, so that you'll get the 1-handed claw, which is much better than the 2-handed version. I used the bonus from wolf's tooth to achieve this. But don't have it in your inventory before transforming, there's a bug, you might lose 3 points from your 1-handed skill