Which artifact would be better for him?

https://preview.redd.it/2jcxlwtz6iie1.png?width=1920&format=png&auto=webp&s=d8bb9eb6713d7c4d97fe1b0588b158dd3c32337a

https://preview.redd.it/7li97o227iie1.png?width=1920&format=png&auto=webp&s=a4a04909a5c97ceb16eba51b22bee5ba91354350

https://preview.redd.it/xktixga37iie1.png?width=1920&format=png&auto=webp&s=c07a051ec8e4932d88b508616f1a829261c94d44

https://preview.redd.it/kmo93z147iie1.png?width=1920&format=png&auto=webp&s=2e1b47a3290386b25a877b3771bb38a2e210c549

I've tried both but can't seem to find a difference in damage output. Don't know where to test him properly.