Asta 
Harmony The lead researcher of Herta Space Station and a lady from a renowned family. She's an astronomer overflowing with curiosity, and excels at managing the disparate staff of the space station.
HP
ATK
DEF
SPEEDOffensive Support Build
Best Light Cone
Asta Best Stats
Asta Best Substats
Asta Best Relics
Asta Best Teams
Asta Speed Support (generic)
Asta-focused speed team that maximizes the number of party actions via Asta's SPD buffs. Use any strong DPS in the DPS slot; bring a Harmony or Nihility support and a Preservation/Abundance unit for flexibility depending on the encounter.
Asta + Himeko Burn Team
A Fire-focused Asta team built to abuse Asta's SPD buffs and Fire DMG boosts. Himeko is the recommended main DPS; Topaz and Fu Xuan fill support/flex roles. Hook and Silver Wolf are suggested alternates to enable or amplify Burn/Fire weakness synergies.
Skills
Deals Fire DMG equal to 0.5% of Asta's ATK to one designated enemy.
Deals Fire DMG equal to 0.25% of Asta's ATK to one designated enemy and further deals DMG for 4 extra times, with each time dealing Fire DMG equal to 0.25% of Asta's ATK to a random enemy.
Increases SPD of all allies by 36 for 2 turn(s).
Gains 1 stack of Charging for every different enemy hit by Asta plus an extra stack if the enemy hit has Fire Weakness. For every stack of Charging Asta has, all allies' ATK increases by 7%, up to 5 time(s). Starting from her second turn, Asta's Charging stack count is reduced by 3 at the beginning of every turn.
Traces
Eidolon
When using Skill, deals DMG for 1 extra time to a random enemy.
After using her Ultimate, Asta's Charging stacks will not be reduced in the next turn.
Skill Lv. +2, up to a maximum of Lv.
Asta's Energy Regeneration Rate increases by
Ultimate Lv. +2, up to a maximum of Lv.
Charging stack(s) lost in each turn is reduced by