Phainon team
Physical · DestructionPlays ATK bufferA Destruction carry who wants raw multipliers rather than a mechanic, so the two support slots are whichever Harmony units buff hardest and the last is a healer.

Amphoreus
Build guide · Honkai: Star Rail
English voice: Rhiannon Moushall
The best Cerydra build in Honkai: Star Rail (Version 4.6) is Epoch Etched in Golden Blood with Sacerdos' Relived Ordeal. Updated November 5, 2026
Also works
#1
Ultimate
Max first
#2
Skill
Then
#3
Talent
Next
#4
Basic ATK
Later
The character with "Military Merit" ignores 16% of the targets' DEF when dealing DMG. If "Military Merit" has been upgraded to "Peerage," then the character additionally ignores 20% of the targets' DEF when dealing Skill DMG. When Cerydra uses her Skill, regenerates 2 Energy for the designated ally target.
The character with "Military Merit" deals 40% increased DMG. While a teammate on the field has "Military Merit," Cerydra's DMG dealt increases by 160%.
Increases Ultimate's DMG multiplier by 240%.
The character with "Military Merit" increases their All-Type RES PEN by 20%, and the multiplier for the Additional DMG triggered via "Military Merit" increases by 300%. While a teammate on the field has "Military Merit," Cerydra's All-Type RES PEN increases by 20%.
A Destruction carry who wants raw multipliers rather than a mechanic, so the two support slots are whichever Harmony units buff hardest and the last is a healer.
Gilgamesh gains a stacking buff every time a teammate uses an Ultimate, and shares a joint follow-up with Saber, so the team is built around Ultimate frequency.
Waveflair banks "Fervor" every time a teammate attacks and spends it on an all-enemy Elation Skill, so the team wants a second Elation unit feeding the counter, a Harmony buffer that adds actions, and a sustain that attacks on its own turn.
Feixiao converts ally attacks into her own follow-ups, so the other three slots are a follow-up partner, a Harmony unit that advances her, and a sustain.
Castorice pays HP for her memosprite, so the line-up pairs a healer who profits from that with two Harmony units that raise the memosprite’s own damage.
A Remembrance carry whose memosprite takes the turns, with two Harmony units feeding it action advance and a healer covering the HP it costs.
Honkai: Star Rail 5★ Wind Harmony Support
Epoch Etched in Golden Blood tops the light cone ranking for Cerydra at S1, ahead of Flowing Nightglow, The Forever Victual and Earthly Escapade. That order is prydwen.gg's, measured in play and rephrased here; every row of it sits under Light cones below.
Run Sacerdos' Relived Ordeal on Cerydra, with Eagle of Twilight Line behind it. The planar ornament is Lushaka, the Sunken Seas. Main stats are ATK% body, Speed > ATK% feet, ATK% sphere, Energy Regen Rate > ATK% rope. Roll substats in the order SPD (Until Desired Speed Build) > ATK% > ATK > Defensive Stats.
Trace priority is Ultimate > Skill > Talent > Basic ATK. The Ultimate costs 130 energy, which is what an Energy Regeneration Rate target has to clear.
Cerydra plays ATK buffer in the Phainon team, alongside Phainon, Tribbie and Hyacine.