Barbara

Barbara

★★★★
Hydro
Catalyst
Off-Field
Survivability
Builds Update5.5
Teams Update5.5
Barbara is primarily used as a support/healer.

Best Artifacts

(2) Character Healing Effectiveness +15%
(4) Using an Elemental Skill or Burst increases healing received by all party members by 20% for 10s.
Great general healing set.
(2) Healing Bonus +15%.
(4) When the character equipping this artifact set heals a character in the party, a Sea-Dyed Foam will appear for 3 seconds, accumulating the amount of HP recovered from healing (including overflow healing). At the end of the duration, the Sea-Dyed Foam will explode, dealing DMG to nearby opponents based on 90% of the accumulated healing. (This DMG is calculated similarly to Reactions such as Electro-Charged, and Superconduct, but it is not affected by Elemental Mastery, Character Levels, or Reaction DMG Bonuses). Only one Sea-Dyed Foam can be produced every 3.5 seconds. Each Sea-Dyed Foam can accumulate up to 30,000 HP (including overflow healing). There can be no more than one Sea-Dyed Foam active at any given time. This effect can still be triggered even when the character who is using this artifact set is not on the field.
Good alternative healing set that also allows Barbara to deal some damage based on the amount of her heals.
(2) Character Healing Effectiveness +15%
(4) Using an Elemental Skill or Burst increases healing received by all party members by 20% for 10s.
(2) Healing Bonus +15%.
(4) When the character equipping this artifact set heals a character in the party, a Sea-Dyed Foam will appear for 3 seconds, accumulating the amount of HP recovered from healing (including overflow healing). At the end of the duration, the Sea-Dyed Foam will explode, dealing DMG to nearby opponents based on 90% of the accumulated healing. (This DMG is calculated similarly to Reactions such as Electro-Charged, and Superconduct, but it is not affected by Elemental Mastery, Character Levels, or Reaction DMG Bonuses). Only one Sea-Dyed Foam can be produced every 3.5 seconds. Each Sea-Dyed Foam can accumulate up to 30,000 HP (including overflow healing). There can be no more than one Sea-Dyed Foam active at any given time. This effect can still be triggered even when the character who is using this artifact set is not on the field.
Alternative if you don't have a full set of either yet.

Best Stats

Sands
HP% / Energy Recharge
Goblet
HP%
Circlet
Healing Bonus
Substats
HP% / Energy Recharge / HP

Best Weapons

Base ATK401
HP+35.2%
SourceWish
Heritage
When switching characters, the new character taking the field has their ATK increased by 24~48% for 10s. This effect can only occur once every 20s.
HP stat increases Barabara's heals, and TTDS enables her to buff her next teammate with up to +48% ATK at R5.
Base ATK608
HP+49.6%
SourceEvent Wish
Byakuya Kougetsu
Healing Bonus increased by 10~20%, Normal Attack DMG is increased by 1~3.0% of the Max HP of the character equipping this weapon. For 12s after using an Elemental Burst, Normal Attacks that hit opponents will restore 0.6 Energy. Energy can be restored this way once every 0.1s.
In case you have Kokomi's signature weapon, then you can also use it on Barbara.
Base ATK510
HP+41.3%
SourceForging
Gilding
Using an Elemental Burst regenerates 4~6 Energy every 2s for 6s. All party members will regenerate 4~6% HP every 2s for this duration.
Craftable option. HP stat is beneficial, and passive helps with faster burst uptime plus more heals for the team.