Highlighted weapons are free options.
Chevreuse provides various character buffs and enemy debuffs when party members trigger Overload.
The main function of her kit, the Pyro and Electro RES reduction, only activates if the entire team consists of Pyro and Electro characters.
Her buff caps at 40,000 HP, after which she no longer needs to build HP.
Chevreuse does not always need to use her Burst, so Energy Recharge is not needed if she chooses not to use her Burst.