Im so CONFUSED!?

So my original team, im at ar 44 don’t judge too harshly..

Kinich Kazuha Xiangling Ororon (All level 60 except kinich who’s 70, all have decent artifacts, kinich is build with four piece obsidians)

It was good! I THOUGHT??? So today I got mauvika and edited my team around a bit I replaced xiangling and ororon with my level 50 Bennett and my mauvika who I got and leveled to level 43 ish? Today

Both have random artifacts

And suddenly my kinich crits do 20-30k more dmg???? What is this madness!