>>66560748oh I don't know much, but I do know about character building, especially the gacha that comes with it.
So if you have a good artifact, you should do a fodder, in the maximum world level for genshin, that's two artifacts: lvl 20 artifact, and a level 10 artifact.
You will now feed these fodder to the good artifact and that will increase its chances for the good crit rate and damage increase!