- Phainon is a 5-star Physical Destruction DPS who transforms into Khaslana for 8 solo turns of massive damage.
- He needs 12 Coreflame stacks to activate his Ultimate — teammates help stack these before transformation.
- Best Light Cone: Thus Burns the Dawn (his signature). Best free option: On the Fall of an Aeon.
- Best Relics: Wavestrider Captain (4-piece) + Arcadia of Woven Dreams (Planar Ornament).
- Best teams include Sunday, Bronya, Tingyun, Cyrene, and Trailblazer (Remembrance).
- Phainon is in Phase 2 of HSR 4.3, running June 24 – July 14, 2026 alongside Cyrene’s rerun.
- His E2 is the biggest power spike — worth chasing if you plan to invest in him long-term.
- Aim for 90–100% CRIT Rate and 160–180%+ CRIT DMG before worrying about anything else.
Who Is Phainon in Honkai Star Rail?
Phainon is a 5-star Physical character following the Path of Destruction in Honkai Star Rail. He debuted in Version 3.4 and is widely considered the strongest single-target DPS in the game at E0 as of patch 4.3.
He comes from Aedes Elysiae, a forgotten frontier village. He is known as the Chrysos Heir and the Nameless Hero carrying the Coreflame of “Worldbearing.” His destiny is to bear the burden of all worlds and light the path forward — even if it means burning himself out in the process.
In gameplay, this lore translates into a boss-like transformation. When Phainon activates his Ultimate, he becomes Khaslana and fights entirely alone for 8 enhanced turns. His teammates depart the field and cannot act, but they are also completely untargetable. This mechanic makes him unlike any other DPS in the game and places a unique premium on buffing him well before the transformation window.
If you are looking to pull Phainon in 4.3, his rerun banner runs during Phase 2 (June 24 – July 14, 2026). His signature Light Cone Thus Burns the Dawn also returns with this banner. For full details on other 4.3 characters running alongside him, check out our Cyrene build guide as well.
Phainon Kit Overview – How His Abilities Work
Phainon has two distinct states — his base form and his Khaslana transformation. You need to understand both to play him well.
Base Form Abilities
Basic Attack – Stride to Deliverance: Deals Physical DMG equal to 100% of Phainon’s ATK to one enemy. Simple single-target poke. You will use this occasionally to build Coreflame when Skill points are tight.
Skill – Let There Be Light: Gains 2 points of Coreflame. Deals Physical DMG equal to 300% of Phainon’s ATK to one enemy and 120% to adjacent targets. This is your primary Coreflame generator before the transformation. Prioritize leveling this first.
Ultimate – He Who Bears the World Must Burn: Requires 12 Coreflame to activate. Transforms Phainon into Khaslana, deploys Territory, causes all teammates to become Departed (untargetable and unable to act), and forces all enemies to gain Physical Weakness. Khaslana gets 8 enhanced extra turns at a fixed SPD equal to 60% of his base SPD.
Talent – Pyric Corpus: When Coreflame reaches 12 points, the Ultimate can be used. Up to 3 excess points can be stored. When any ally targets Phainon with an ability, he gains 1 Coreflame. If the ability comes from a teammate, he also gains a CRIT DMG buff for 3 turns. This is why supports like Sunday and Bronya are so strong with him.
Khaslana Form Abilities
Enhanced Basic Attack – Creation: Bloodthorn Ferry: Gains 2 Scourge stacks. Deals Physical DMG to one enemy and adjacent targets. This is Khaslana’s filler attack used when neither Enhanced Skill is ready.
Enhanced Skill 1 – Calamity: Soulscorch Edict: Gains Scourge equal to the number of enemies present and 1 stack of Soulscorch, then forces all enemies to immediately take action. In Soulscorch state, Khaslana takes 75% less damage and counters each enemy action with AoE Physical DMG. Each stack of Soulrending Blaze boosts this counter’s multiplier by 20%. This is Khaslana’s most powerful and satisfying ability to land.
Enhanced Skill 2 – Foundation: Stardeath Verdict: Dispels all debuffs from Khaslana, then consumes Scourge stacks to deal massive Physical DMG across enemies. For every 4 Scourge consumed, it deals an additional AoE hit distributed across all enemies. Great for multi-target scenarios.
Final Hit: At the end of the 8th extra turn, Khaslana launches a Final Hit dealing Physical Ultimate DMG distributed evenly across all enemies. It’s the capping blow of the entire rotation window.
One important thing to keep in mind: all buffs applied to Phainon before he transforms are snapshotted. Because his enhanced turns do not tick buff durations down in the same way as regular turns, pre-transformation buffs effectively last the entire 8-turn window. This is why you load him up with buffs before pressing Ultimate.
Phainon Best Light Cones in HSR 4.3
Phainon follows the Path of Destruction, so always equip him with a Destruction path Light Cone. Using an off-path Light Cone will waste the passive bonus entirely.
Thus Burns the Dawn (Signature – Best in Slot)
This is Phainon’s dedicated 5-star Light Cone and the clear best option. It gives him the highest base ATK in the game at 687, a permanent 18% DEF ignore on all attacks, and a significant DMG% buff that is active throughout his entire transformation window. The combination of raw stats and built-in DEF penetration makes it far ahead of any alternative. If you can pull his signature alongside him, do it.
Wavestrider Captain (Alternative 5-Star)
A strong alternative if you have this Light Cone from a previous banner. It provides a large ATK buff during his Ultimate state and a CRIT DMG bonus, which synergizes well with Phainon’s own Talent-based CRIT DMG stacking.
On the Fall of an Aeon (Free 4-Star – Best Budget Option)
Obtainable from the Herta Shop, this is Phainon’s best free Light Cone. It stacks ATK buffs on attack and grants a DMG increase when an enemy’s Weakness is broken. Since Phainon forces Physical Weakness on all enemies, the DMG bonus procs reliably. Farm this from the Simulated Universe shop if you don’t have a 5-star option.
A Secret Vow (Craftable 4-Star)
A solid craftable option. It increases DMG dealt to enemies with higher HP than Phainon, which triggers often in boss fights. Not far behind On the Fall of an Aeon and easier to obtain if you haven’t farmed the Herta Shop yet.
Something Irreplaceable (5-Star Alternative)
If you have this from Gepard’s or Blade’s banner reruns, it can work on Phainon. It grants an ATK buff on enemy kill and restores HP. The HP restore has some niche value inside Khaslana’s transformation. Not a priority pick but usable.
Phainon Best Relics in HSR 4.3
Getting Phainon’s relic setup right is critical. His massive ATK and CRIT multipliers mean small stat improvements translate into large damage gains.
Best 4-Piece Relic Set: Wavestrider Captain
This is Phainon’s best relic set by a clear margin. The 2-piece bonus gives a CRIT DMG boost. The 4-piece gives a big ATK buff during his Ultimate state, which covers his entire Khaslana transformation. Farm this set specifically — the bonus is almost tailor-made for how Phainon plays.
Alternative: Champion of Streetwise Boxing
The classic Physical DMG relic set. Each stack of the 4-piece buff gives a Physical DMG increase, and the stacks build up over the course of a fight. Decent if you have good substats on this set and are still farming for Wavestrider Captain pieces.
Best Planar Ornament: Arcadia of Woven Dreams
Phainon’s best Planar Ornament. It increases the wearer’s CRIT DMG and boosts damage when CRIT Rate is high. Since you will be building Phainon to near 100% CRIT Rate anyway, the full bonus activates comfortably. Run this in your Simulated Universe farming sessions until you have a good pair.
Alternative Planar Ornament: Rutilant Arena
A serviceable substitute while you farm Arcadia. It grants a CRIT Rate bonus and a DMG% increase to Basic ATK and Skill when CRIT Rate is above 70%. The Skill bonus is particularly useful since Khaslana’s enhanced moves scale off his Skill multipliers. Use this if you have strong Arcadia pieces but with bad substats.
Relic Main Stats to Target
- Head: HP (fixed)
- Hands: ATK (fixed)
- Body: CRIT Rate (prioritize this — Phainon already gets CRIT DMG from his Traces)
- Feet: SPD or ATK (SPD if targeting 136 breakpoint; ATK if using Sunday or Bronya to advance action)
- Planar Sphere: Physical DMG Boost
- Link Rope: ATK%
Key Substat Priority
Focus on CRIT Rate first, then CRIT DMG, then ATK%. Speed substats matter depending on your team (see the teams section below for speed tuning notes). Flat ATK is a low priority — always prefer ATK% rolls over flat ATK if you have a choice.
Stat Targets
- CRIT Rate: 90–100%
- CRIT DMG: 160–180%+
- ATK: 3,000+ (easier to hit with his signature LC)
- SPD: 136 base (adjust to 135 for Sunday teams, 134 for Bronya teams)
Phainon Best Teams in HSR 4.3
Phainon is a hypercarry. His team’s entire job is to load him with buffs and Coreflame before his Ultimate window, then stay out of the way while Khaslana handles the fight. Because teammates are untargetable during Territory, you can safely run triple-buffer setups with no healer.
Premium Team: Phainon / Sunday / Bronya / Tingyun
This is the strongest team for Phainon in most content. Sunday provides 100% Action Advance, CRIT DMG, Energy regen, and SP generation. Bronya gives another Action Advance plus a CRIT DMG buff and ATK buff. Tingyun provides an ATK buff and restores energy-equivalent value by targeting Phainon with her skill, which also builds his Coreflame via the Talent passive. All three help fill his Coreflame bar quickly and amplify his transformation damage enormously. Speed-tune Sunday to 136+, Bronya to 134, and Phainon to 135 for clean rotations.
Meta Team: Phainon / Cyrene / Cerydra / Trailblazer (Remembrance)
This is Phainon’s current top-rated team as of patch 4.3 according to community build trackers. Cyrene is a strong Remembrance support who buffs Phainon’s damage substantially. Cerydra provides additional amplification for Physical teams. Trailblazer (Remembrance) gives a reliable free support slot with useful CRIT and ATK buffs. This team is particularly strong in Memory of Chaos and Apocalyptic Shadow.
F2P Friendly Team: Phainon / Trailblazer (Remembrance) / Tingyun / Bronya
A solid free-to-play option that performs surprisingly well. Trailblazer (Remembrance) is a free character with strong buffing utility. Tingyun is a 4-star readily available from the gacha pool. Bronya is an older 5-star rerun character who has become accessible for many accounts. This team can comfortably clear most endgame content even without pulling expensive supports.
Alternative Supports Worth Knowing
- Sparkle – Excellent SP battery and CRIT DMG buffer. Can substitute for Bronya.
- Ruan Mei – Adds Break efficiency and a passive DMG% buff. Works well if you don’t have Sunday.
- Robin – ATK buffer with a constant DMG bonus. Pairs well with Phainon’s multi-hit Khaslana moves.
- Huohuo – If you want a healer for safety in longer fights, Huohuo provides both healing and Energy regen. Not needed in most clear attempts but comfortable.
One key point on sustain: Phainon does not need a healer in most situations. His Khaslana form has 75% damage reduction, heals 20% of Max HP after each attack, and has death immunity once per transformation. You are almost always better off running a third buffer instead of a healer.
Phainon Trace Priority
Put your upgrade materials here in this order:
- Skill (Let There Be Light) – Level first. This is your primary Coreflame generator and your main source of pre-transformation Physical DMG. Higher Skill levels directly increase the DMG multiplier and make your rotations hit harder.
- Talent (Pyric Corpus) – Level second. The CRIT DMG boost from teammate interactions scales with Talent level. More CRIT DMG means more damage during the Khaslana window.
- Ultimate – Level third. Increases the damage multiplier of his Final Hit and improves his transformation stats.
- Basic Attack – Last. You rarely use Phainon’s basic attack in normal rotations. Level this last after everything else is maxed.
For Bonus Traces, prioritize unlocking the ones that boost CRIT DMG, ATK%, and Physical DMG. These passive stat bonuses are always active and directly increase transformation damage.
Phainon Eidolons – Which Ones Are Worth It?
Phainon performs very well at E0, but certain Eidolons offer meaningful upgrades. Here is a breakdown:
E1 – Moderate Upgrade
E1 increases the SPD inheritance ratio for Khaslana’s extra turns from 60% to 66%. For every enemy defeated in one battle, it increases by an additional 1.5%, up to a maximum of 84%. Faster extra turns mean Phainon cycles through his 8 Khaslana actions more quickly. It is a noticeable improvement in multi-enemy fights but not essential.
E2 – Best Value Eidolon (Recommended Stop Point)
When Phainon uses his Ultimate, he gains 50% CRIT DMG for 3 turns. Because enhanced turns do not tick buff durations down in the standard way, this 50% CRIT DMG buff effectively covers his entire 8-turn transformation. This is the single largest damage jump per eidolon in Phainon’s kit. Some Apocalyptic Shadow phases in 4.3 that require significant effort at E0 become far more comfortable at E2. If you plan to invest seriously in Phainon, E2 is the target stop point before looking elsewhere.
E3 and E4 – Incremental Gains
E3 raises Skill level by 2. E4 adds a small additional buff to his transformation stats. Both are incremental improvements. Pull these if you are a dedicated Phainon main but don’t prioritize them over E2.
E5 and E6 – High Investment
E5 boosts Ultimate level. E6 significantly expands his damage output by enhancing the Khaslana enhanced skills. The jump from E5 to E6 is very large, but reaching E6 requires exceptional investment. Most players will find E0–E2 is the practical range to aim for.
Phainon Rotation Guide – How to Play Him
Phainon has a specific rhythm that you need to learn to get the most out of him. It is not complicated once you understand it, but it is different from most DPS characters.
Pre-Transformation Phase
Your goal is to reach 12 Coreflame as quickly as possible while loading Phainon with buffs. Use Phainon’s Skill every turn to gain 2 Coreflame. Each teammate ability targeting Phainon gives 1 additional Coreflame from his Talent passive. With Sunday, Bronya, and Tingyun all targeting him, you can fill the bar within 2–3 turns in most setups.
Before pressing Ultimate, make sure all buffs are applied. Use Sunday’s Ultimate, then Bronya’s Ultimate or Skill to advance Phainon’s turn. Apply Tingyun’s ATK buff. The key rule is: buff first, then transform. Because buffs snapshot into the transformation, any buff not applied before you press Ultimate is wasted for that full window.
Transformation Phase (Khaslana’s 8 Extra Turns)
Once Phainon transforms, all teammates depart and you control only Khaslana. His action sequence is roughly:
- Use Soulscorch Edict to build Scourge and trigger the counter mechanic against enemy actions.
- Build Scourge stacks through basic attacks and abilities.
- Use Stardeath Verdict when you have a strong Scourge stack to dump damage.
- Let the Final Hit land on the 8th extra turn to cap the window.
After the transformation ends, teammates return. Begin building Coreflame again for the next cycle. Most fights end within one or two full transformation windows at E0 with good relic builds.
Should You Pull Phainon in HSR 4.3?
Yes, if you do not already have a top-tier DPS. Phainon is still the best single-target carry in the game at E0 as of 4.3. He tops Apocalyptic Shadow leaderboards and performs at T0.5 in Memory of Chaos. He handles any content where Physical Weakness can be imposed — and he imposes it himself, so that barrier does not apply to him.
His kit is sustainless by design, which is a genuine quality-of-life benefit. You can slot triple buffers into his team without worrying about surviving boss attacks. He works with both premium supports like Sunday and free options like Trailblazer (Remembrance) and Tingyun, making him one of the most flexible hypercarries to build around.
The one honest limitation is his unique solo playstyle. Teammates cannot help him during the Khaslana window. That means any boss with HP inflation, stalling mechanics, or the ability to delay his turns can reduce his efficiency. He is not designed for speed-running Pure Fiction the way AoE carries are. But in boss-heavy content, he remains the benchmark.
Phase 2 of 4.3 also brings back his signature Light Cone Thus Burns the Dawn. If you pull Phainon’s banner, consider going for the Light Cone as well — it is a meaningful damage upgrade and unlikely to be replaced anytime soon.
If you are curious about other strong DPS options in the current meta, check out our guides for Acheron, Mydei, and Feixiao. For top-tier support alternatives to pair with Phainon, see our guides for Tribbie, Aglaea, and Aventurine.
Phainon 4.3 Build Guide – Quick Summary
- Role: Main DPS / Hypercarry
- Element: Physical
- Path: Destruction
- Best Light Cone: Thus Burns the Dawn (signature) > On the Fall of an Aeon (free)
- Best 4-Piece Relic Set: Wavestrider Captain
- Best Planar Ornament: Arcadia of Woven Dreams
- Body Main Stat: CRIT Rate
- Feet Main Stat: SPD or ATK
- Sphere Main Stat: Physical DMG Boost
- Rope Main Stat: ATK%
- Stat Goals: 90–100% CRIT Rate, 160–180%+ CRIT DMG, 3,000+ ATK
- Trace Priority: Skill > Talent > Ultimate > Basic Attack
- Best Eidolon: E2 (50% CRIT DMG during Ultimate)
- Best Teams: Sunday + Bronya + Tingyun / Cyrene + Cerydra + TB Remembrance
- Banner Window (4.3): June 24 – July 14, 2026 (Phase 2)
For a deeper dive into Phainon’s character profile, full skill calculations, and endgame tier placement, visit the complete Phainon guide on GamingProMax.
For the official patch details, check the HoYoverse official Honkai Star Rail news page for version 4.3 patch notes and event information.
