Hardcore Bailu believer, just having her E1 makes her comparable to Huo²
She literally needs hp and speed, super easy to build (Maybe effect res as a little extra).
Lightcone Post-Op conversation because energy regen.
Stronger than normal healing sustains because she gives %Max Hp(Like Hyacine) AND Damage reduction on top of that.
She has can revive once a fight which can save your run when your most squishy character gets one shot by a boss final move (Perfect for no-sustain runs).
With E1 she gains (Unreliable) TEAM WIDE energy regen, and in combination with "Quid Pro Quo" you can have the ultimate energy gambling experience. (Time to spend 5 hours to try and get the energy on the right characters! <-- Super fun!)
With E4 (that I don't have but it seems ultra strong anyway) you even have %DMG bonus, team wide or all on your carry!
Another bonus, if I loose 50/50 to her I'm happy!
With all this said seeing that Huo² is T0, I think we can all agree to put her in at LEAST T1
Who needs to pull for sustains when you can put these pulls into foxgirl characters?
Thank you all for your time
Edit:
For those interested in the team cost or LC's of any character:
Hyselins E0, Sampo LC S5/Black Swan E0S1/Kafka E2, Sw event LC S5/Bailu E2, Post-Op S5
Evanescia E2S1/ETB E6, Herta LC S3/Sparkle E0, Bronya LC S2/Fu Xuan E2, Gepard LC
The Herta E2S1/Anaxa E0S1/Tribbie E0, DDD S5/DHPT E0S1