Phainon build is the hot topic right now–and for good reason. The long-awaited Phainon Kaslana, Honkai Star Rail’s striking Physical DPS, is finally joining the roster in Version 3.4 in July 2025.
If you’re planning to pull for this mythic powerhouse (and you definitely should), you’ll need the ultimate Phainon build guide to maximize his devastating potential.
From relics and Light Cones to Eidolons, ascension materials, and top-tier team comps, we’re covering it all to help you make Phainon a star-crushing force.
Phainon Honkai Star Rail Release Date
The wait is almost over, as Phainon drops on July 2, 2025 (server time), as part of the HSR Version 3.4 update.
He’s a 5-star Physical Destruction unit, built for insane burst damage with a high-risk, high-reward kit.
Phainon Kit Leaks for Best Build in Honkai Star Rail
Alright, Phainon is a mechanically unique monster who doesn’t charge his Ultimate like normal characters.
Instead, he gains “Coreflame” stacks when enemies or allies target him. And when that counter hits 12? He transforms into Khaslana and enters a blazing territory of destruction.
- Basic ATK – Stride to Deliverance: Deals 100% ATK as Physical DMG to one enemy. Nothing fancy, but still useful for filler turns.
- Skill – Let There Be Light: Hits one target for 300% ATK and splashes nearby enemies for 120% ATK, while giving 2 Coreflame stacks: efficient damage dealer and kit enabler.
- Ultimate – He Who Bears the World Must Burn: Phainon transforms into Khaslana, locks his team into a “Departed” state (they literally can’t act), and unloads 8 fixed-speed turns of high-octane damage. Final hit hits all enemies for a wild 960% ATK.
- Talent – Pyric Corpus: Coreflame logic central. Get 1 stack whenever he’s targeted. Hit 12 stacks? Unlock Ultimate. If an ally targets him, gain 30% CRIT DMG for 3 turns.
HSR Phainon Trace Priority
Want Phainon to pop off right away? Focus on leveling these in this exact order:
- Skill – Coreflame builder and AoE monster.
- Ultimate – Unlocks the Khaslana transformation.
- Talent – Boosts CRIT DMG and fuels transformation.
- Basic ATK – Lowest priority.
See Also: Sunday Honkai Star Rail: Release Date, Skills & Build in Version 2.7
Best Phainon Build in Honkai Star Rail
Phainon hits like a freight train, but to truly unlock his power, you’ll need a top-tier loadout. Here’s what to aim for:
Best Light Cone for Phainon
1. Thus Burns the Dawn (5-star Signature LC)
- +12-20 SPD
- Ignores up to 30% DEF
- Post-Ultimate: Gain Blazing Sun → Boost DMG by 30%
This cone is tailor-made for Phainon. The SPD boost makes his Ultimate cycle faster, and the DEF ignore turns him into a raid boss. Must-have if you’re all-in.
Best Relic Set
1. Wavestrider Captain (New in 3.3)
- 2P: +16% CRIT DMG
- 4P: When targeted by allies, gains “Help” stacks. Using Ult with 2 stacks = +48% ATK
This set feeds perfectly into Phainon’s talent mechanics. Bring supports that target him to stack buffs like candy.
Best Planar Ornaments
1. Arcadia of Woven Dreams
- 2P: When the number of ally targets on the field is not 4, for every 1 missing or extra ally, the wearer’s and their memosprite’s DMG is reduced by 9%/12%, stacking up to 4/3 times.
Phainon’s Ultimate puts teammates in a “Departed” state, meaning he’s often fighting solo.
This Ornament rewards those set up with stacking DMG bonuses, making it the perfect fit for his isolated burst windows.
HSR Phainon Eidolons Build
So you’re thinking of going beyond just getting one copy of Phainon? Good, because while Phainon is already a beast at E0, his Eidolons massively upgrade his damage ceiling and smooth out some of his more rigid mechanics.
Let’s break down what each Phainon Eidolon brings to the table and how it fits into his full build.
- E1 – Speed Up & Penetration
- Boosts Khaslana’s turn speed (72%) and gives 15% Physical RES Pen when Coreflame maxes out.
- Great quality-of-life and damage spike.
- E2 – Bonus DMG & Extra Turn
- Adds 120% bonus damage and gives an extra turn after using certain skills.
- Major power spike–must-have if you’re going beyond E0.
- E3 & E5 – Level Ups
- Boosts Ultimate, Basic ATK, Skill, and Talent levels.
- Nice-to-have but not essential.
- E4 – More Scourge Stacks
- Adds 4 Soulscorch stacks when using a key skill, feeding Ultimate power.
- Synergy booster, great for higher Eidolon setups.
- E6 – True DMG Final Hit
- Increases Scourge limit, adds 20% true damage on Final Hit.
- Huge DPS jump–E6 is busted if you’re a whale.
E0 Phainon is solid, but E2 and E6 unlock his full potential. Planning to pull? Top-up HSR Stellar Jades easily with Lapakgaming before the banner hits!
See Also: Lingsha Honkai Star Rail: Ep 2.5 Update, Best Build & More!
Best Phainon Team Build in Honkai Star Rail
Phainon’s unique “Departed” mechanic removes teammates from the action while he’s in Khaslana form.
That means your team needs to buff him before he transforms. Below is the dream lineup:
Meta Phainon Team (F2P-ish Friendly)
- Phainon (Main DPS)
- Sunday (Core buffer and ultimate synergy)
- Robin / Bronya (Buff + CRIT boost)
- Hyacine / Gallagher (Sustain + healing).
Alternative Future Supports
- Cerydra (Upcoming 3.5) – Leaked synergy with Khaslana buffs.
- Fu Xuan – For some tanky consistency, especially in Memory of Chaos.
HSR Phainon Ascension Materials
To max out Phainon’s level, you’ll need:
| Ascension Level | Materials | Credits |
|---|---|---|
| Lv20 | x5 Ethereal Omen | 4,000 |
| Lv30 | x10 Ethereal Omen | 8,000 |
| Lv40 | x6 Echoing Wail, x3 Darkveil Moonlight | 16,000 |
| Lv50 | x9 Echoing Wail, x7 Darkveil Moonlight | 40,000 |
| Lv60 | x6 Eternal Lament, x20 Darkveil Moonlight | 80,000 |
| Lv70 | x9 Eternal Lament, x35 Darkveil Moonlight | 160,000 |
Total:
- x15 Ethereal Omen
- x15 Echoing Wail
- x15 Eternal Lament
- x65 Darkveil Moonlight
- 308,000 Credits.
Phainon Trace Materials in HSR
To triple crown Phainon’s traces:
- x139 Moon Rage Fang
- x69 Lupitoxin Sawteeth
- x56 Echoing Wail
- x58 Eternal Lament
- x41 Ethereal Omen
- x18 Borisin Teeth
- x12 Daythunder Anamnesis
- x8 Tracks of Destiny
- ~3M Credits.
This is a serious investment, so plan your resin and Trailblaze Power usage smart!
See Also: The Herta or Aglaea HSR: Which Banner to Pull for in 3.0?
That’s everything you need for the best Phainon build in Honkai Star Rail. With a unique playstyle, cracked multipliers, and signature gear to match, he’s shaping up to be a top-tier hypercarry–just not the most beginner-friendly one.
Nail his relic set, manage your Skill Point economy, and surround him with strong supports, and you’ll watch him shred boss HP bars like it’s nothing.
Want to top up Honkai Star Rail’s Stellar Jades fast for Phainon’s banner? Don’t forget to check out Lapakgaming for secure Honkai Star Rail top-ups, because you’re gonna need those pulls.
