How good is that tartagila's master of weaponry passive? Must have him in party to effect or just need to get him only?

I can do 90 more pulls. Not sure want get him or wait future characters...

I see.... then I will skip him because I have too many characters to focus on already. Don't want burden myself with one more.

This game not worth to spend money on rolling because its too expensive.

I only spend on gnostic hymn u can get about 15 rolls at max.

So lucky. My single roll keep getting rubbish. My exploration team is venti  diluc,  barbara and chong yun.

Slam chong yun create ice area, Activate barbara skill , switch to diluc every hit increase damage by 50% + frozen, after that venti cast swirl

If see boss cast venti ultimate, active Barbara skill, diluc ultimate, chong yun ultimate usually the boss 20% life left of dead

I play i always focus on 5 stars hero because of the cost to upgrade level and talent.

Now

Venti  level 80
Diluc level 70
Chong yun 60
Barbara 50