She is a support character, but it seems she will be a niche one. See the details of Cerydra’s kit, Traces, and Eidolons in Honkai Star Rail.
Cerydra will be playable once Honkai Star Rail version 3.5 drops. Will skipping her banner brick your account? Find out by checking out all the details of Cerydra's kit, skills, Traces, and Eidolons below.
She is one of the two new characters in the upcoming update, releasing alongside Hysilens. Read more about why Hysilens might be the savior that DoT teams need.
Cerydra kit in Honkai Star Rail
She is a 5-star Wind character on the Path of Harmony. This means that Cerydra's kit can provide buffs to her teammates. In particular, her skills revolve around one buff only. This buff can only be applied to one teammate at a time, but its power is nothing to scoff at.

Basic ATK (Single Target) - King's Castling
Deal Wind DMG to one enemy.
Skill (Support) - Pawn's Promotion
Grant Military Merit to one ally, and 1 Charge to Cerydra.
Charge
Capped at 8 points. At 6 points, the character with Military Merit has all Crowd Control debuffs dispelled and their buff is upgraded to Peerage.
Peerage
The character with this buff gets CRIT DMG for their Skill, increases All-Type RES PEN, and triggers Coup de Main when using their Skill against enemies.
After Coup de Main ends, consume Charge to revert Peerage back to Military Merit.
Ultimate (AoE) - Scholar's Mate
Gain 2 Charge and deal Wind DMG based on Cerydra's ATK to all enemies. If no allies have Military Merit, grant it to the character in position 1.
Talent (Support) - Ave Imperator
Military Merit
The character with Military Merit gets increased ATK based on Cerydra's ATK. When this character performs a Basic ATK or a Skill, Cerydra gains 1 Charge. When they use any attack, Cerydra deals Additional Wind DMG. The buff only affects the most recent target, and when the target changes, Charges are reverted back to 0.
Coup de Main
No Charge stacks can be gained.
Related articles
Technique (Support) - First-Move Advantage
Grant Military Merit to the active character. When entering battle, automatically uses Skill on the character with Military Merit.

Cerydra Traces
Veni
Cerydra gains bonus CRIT DMG based on her ATK stat.
Vidi
Increase Cerydra's CRIT Rate by 100%.
When the character with Military Merit uses their Ultimate, gain 1 Charge. (Once per battle)
Vici
Skill increases SPD for Cerydra and the character with Military Merit. When the character with Military Merit uses Basic ATK or Skill, regenerate Energy for Cerydra.
Cerydra Eidolons

- Seize the Crowns of All
- Character with Military Merit ignores some of the enemies' DEF when dealing DMG.
- After upgrading the buff to Peerage, their Skill ignores even more DEF.
- Skill now regenerates a small amount of Energy to the target ally.
- Forge the Dreams of Many
- Military Merit now increases the DMG of the character. When someone on the field has Military Merit, increase Cerydra's DMG.
- Torch the Laws of Old - Increase Skill and Basic ATK level and level cap.
- Remake the Realms of Men - Increase Ultimate DMG multiplier.
- Help and Hurt Repaid in Full - Increase Ultimate and Talent level and level cap.
- A Journey Set Starward
- Military Merit grants more All-Type RES PEN. Additional Wind DMG triggered increased. Cerydra also gains All-Type RES PEN when someone on the field has Military Merit.
You can get to experience Cerydra's kit, skills, Traces, and Eidolons for yourself when she goes live on Honkai Star Rail version 3.5!
For more Honkai Star Rail news and updates, stick around esports.gg.