SoraHoshina
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Last Updated on July 1, 2025 by
As one of the Chrysos Heir in Amphoreus, Phainon has garners lot of fans from the community for the past three versions. Now in Honkai: Star Rail version 3.4, Phainon is finally playable as 5-star Physical Destruction. While there are multiple units with the same element and class, Phainon has one special mechanism that no other characters have: Territory.
Inside the Territory, all teammates will become Departed and all enemies will be implanted with Physical Weakness. In this state, Phainon will gains many buffs and becomes immune to Crowd Control debuffs and fatal damage.
This guide will cover Phainon’s best Light Cones, Relics, team compositions, and how to optimize his talents in Honkai: Star Rail.
Table of Contents
Phainon’s Best Lightcones in Honkai: Star Rail
| Light Cones | Names | Passive Skill |
|---|---|---|
 | Thus Burns the Dawn (5★) | The wearer’s base SPD increases by 12~20. When the wearer deals DMG, ignores 18~36% of the target’s DEF. After the wearer uses Ultimate, obtains “Blazing Sun,” which is removed at the start of their turn. While “Blazing Sun” is in possession, increases the wearer’s DMG dealt by 60~132%. |
 | Brighter Than the Sun (5★) | Increases the wearer’s CRIT Rate by 18~30%. When the wearer uses their Basic ATK, they will gain 1 stack of Dragon’s Call, lasting for 2 turns. Each Stack of Dragon’s Call increases the wearer’s ATK by 18~30% and Energy Regeneration Rate by 6.0~10.0%. Dragon’s Call can be stacked up to 2 times. |
 | On the Fall of an Aeon (5★) | When the wearer attacks, increases their ATK by 8~16% in this battle. This effect can stack up to 4 time(s). After the wearer breaks an enemy’s Weakness, increases DMG dealt by 12~24%, lasting for 2 turn(s). |
 | A Trail of Bygone Blood (4★) | Increases the wearer’s CRIT Rate by 12~20%. The Skill DMG and Ultimate DMG dealt by the wearer increases by 24~40%. |
 | Under the Blue Sky (4★) | Increases the wearer’s ATK by 16~32%. When the wearer defeats an enemy, the wearer’s CRIT Rate increases by 12~24% for 3 turn(s). |
 | Nowhere to Run (4★) | Increases the wearer’s ATK by 24~48%. Whenever the wearer defeats an enemy, they restore HP equal to 12~24% of their ATK. |
 | A Secret Vow (4★) | Increases DMG dealt by the wearer by 20~40%. The wearer also deals an extra 20~40% of DMG to enemies whose current HP percentage is equal to or higher than the wearer’s current HP percentage. |
Phainon’s Best Relics in Honkai: Star Rail
Recommended Cavern Relics
| Cavern Relics | Set | Bonuses |
|---|---|---|
 | Wavestrider Captain | 2 Piece: Increases CRIT DMG by 16%. 4 Piece: When the wearer becomes the target of another ally target’s ability, gains 1 stack of “Help,” stacking up to 2 time(s). If there are 2 stack(s) of “Help” when the wearer uses their Ultimate, consumes all “Help” to increase the wearer’s ATK by 48% for 1 turn(s). |
 | Scholar Lost in Erudition | 2 Piece: Increases CRIT Rate by 8%. 4 Piece: Increases DMG dealt by Skill and Ultimate by 20%. After using Ultimate, additionally increases the DMG dealt by the next Skill by 25%. |
Recommended Planar Ornaments
| Planar Ornaments | Set | Bonuses |
|---|---|---|
 | Arcadia of Woven Dreams | 2 Piece: When there are currently more or less than 4 ally targets in battle, each additional/missing ally target increases the wearer and their memosprite’s DMG by 9%/12%, up to a maximum of 4/3 stacks. |
 | Rutilant Arena | 2 Piece: Increases the wearer’s CRIT Rate by 8%. When the wearer’s current CRIT Rate reaches 70% or higher, the wearer’s Basic ATK and Skill DMG increase by 20%. |
Main & Sub Stats Priority
| Main Stat | Sub Stat |
|---|---|
| Body: Crit Rate / Crit Damage Feet: ATK > SPD Planar Sphere: Physical > ATK Link Rope: ATK | 1. SPD 2. Crit Rate 3. Crit Damage 4. ATK% |
Stat Goals:
Crit Rate: 100% (in combat)
Crit Damage: 180%
SPD: 136+ or Base SPD (depending on team, 136 is with 135 Sunday & 134 Bronya)
ATK: 2500-3500
Phainon’s Synergy & Team Compositions in Honkai: Star Rail
In a normal team, you would want to add DPS + Sub DPS/Support + Support + Sustain.
Phainon can also follow the template as he will gain DMG bonus from his Trace ‘Bide in Flames’ when receiving healing or shields, but as someone who cannot die in his Territory, going sustainless most of the time is better (if you have suitable supports) for more damage.
Synergy with Other Characters
In version 3.4, the two best supports for Phainon would be Sunday and Bronya. The Chrysos Heir wants to be the target of an ability as much as possible to gain Coreflame.
Both Sunday and Bronya’s Skill and Ultimate will provide Coreflame for Phainon (Yes, Sunday’s Energy regeneration ability from Ult will also provide Coreflame for Phainon, as can be seen in the Bide in Flames Trace above)
In terms of F2P, Remembrance MC and Tingyun comes with a clutch as the former can provide True DMG buff to Phainon, while the latter can still provide solid buffs and Coreflame generator.
While Ruan Mei does not provide any Coreflame for Phainon (as her Skill and Ultimate taget the whole team instead of a single ally), she is still useful for Phainon’s team in Apocalyptic Shadow. After all, this end-game wants us to Weakness Break the bosses’ toughness as fast as possible to gain the stage buffs.
If you don’t want to go sustainless with Phainon, then Huohuo is the best healer for him. Her Skill can target Phainon to activate his Trace (40% DMG Bonus), while her Ultimate can both activate the Trace and provide Coreflames, in addition with ATK buff.
Team Composition Examples
Here are multiple Phainon’s team example for most of the end-game in Honkai: Star Rail. If any of the supports use Lushaka, the Sunken Seas Planar Ornament, make sure to place Phainon in the first slot to gain the buff.
Phainon’s Talent Priority in Honkai: Star Rail
Skill = Talent > Basic ATK > Ultimate
Phainon’s true potential lies behind his Ultimate, but most of the damages inside the Territory come from his Skill and Basic ATK, while his Talent provides tons of buffs. But of course, his Ultimate also contributes some damage as the Final Hit from the Territory comes from Ultimate level.
Phainon’s Eidolons Overview in Honkai: Star Rail
Best Eidolons: E1, E2 & E6
- Eidolon 1 ★: Provides SPD increase during his Transformation inside the Territory, shortening the Action Value (AV) between his extra turns. In addition, Phainon will also gain Crit DMG buff that lasts for 3 turns.
- Eidolon 2 ★: Physical RES PEN increases by 20%. When consuming 4 Scourge to use “Foundation: Stardeath Verdict” aka the meteor shower, gains 1 extra turn (separate to the 8 extra turn).
- Eidolon 3: Ultimate Lv. +2 & Basic ATK Lv. +1
- Eidolon 4: When using “Calamity: Soulscorch Edict” aka the counter inside his Territory, gains 4 stacks of Soulscorch.
- Eidolon 5: Skill Lv. +2 & Talent Lv. +2
- Eidolon 6 ★: Let Phainon overflow on Coreflames to a maximum number of 402,604,020, which is enough for 33,550,336 Ultimate – (Of course, it’s not possible to gain this much Coreflames, as it was mostly for the lore. The total cycle that Amphoreus has gone through are 33,550,336). After entering the battle, Phainon will also gain initial 6 Coreflames. Lastly, his meteor shower attack will also deal True DMG to the enemy with the highest HP.
Sora is a content creator focusing on gacha games in BrandAnime. Aside from playing all the gacha games to a worrying extent, she also streams on her YouTube and Twitch channels (SoraHoshina). If she got bored, then she will write a guide. Yes, write a guide, not anything else that normal people do.
