What gear/abilities are needed for late game play?

Only a couple hundred hours in qud but thousands in other roguelikes. Playing my roleplay truekin to get familiar with the game

In other rogelikes there's normally a set of abilities and gear considered mandatory to survive late game. NetHack springs to mind where you need reflection if you don't want to instadie to death rays. What gear or capabilities do you consider mandatory for mid-late game CoQ?