What artifacts should dps xilonen weild in a mono geo lunar crystallize team

So xilonen was my first ever limited banner character and I always wanted to build her as a main dps in a mono geo team, and now with lunar crystallize, I want to build a lunar crystallize dps xilonen but is extremely confused with her artifact sets.
Should I go with:

Obsidian codex/

Husk of opulent dreams or

Night of the sky's unveiling?


The team would be:
Xilonen
Gorou
Illuga
Columbina.