The thing about the best weapons in Crimson Desert is that all of them are actually the same. Well, some have unique properties thanks to Abyss Cores, but those can be extracted and put into different weapons, which can then be refined. Essentially, weapons by themselves are just cosmetics which can be improved with Abyss Cores and refinement.
However, you don't always need to use weapons in Crimson Desert. You can RKO enemies, smack them with tree trunks, unleash a swarm of bees, and even use floating power cores to drain their health. However, if you really want to use an unconventional OP weapon, you can use Crimson Desert's Lightning Cubes.
Unfortunately, you can't really find Lightning Cubes in Pywel. They are part of The Frostbitten Paradise puzzle, which you can learn more about here. The puzzle eventually grants you access to the lighting element in the game, but if you do things right, you'll be able to take one of the Lightning Cubes down to Pywel and absolutely decimate enemies with it.
As showcased by Redditor Kai_Czara, at some point in the puzzle, there is a hole through which you can drop the Lighting Cube and yourself down to...
