Phainon vs Mydei: Quick Comparison Overview
Character Roles and Paths

So here's where things get interesting. Phainon's built around this transformation gimmick - stack up Coreflame to enter his Khaslana form, and suddenly you're dealing hypercarry-level Physical damage. Pretty straightforward stuff.
Mydei? He's playing an entirely different game. This guy scales off HP, deals Imaginary damage, and literally refuses to die thanks to his Vendetta mechanics. Three revival opportunities. Yeah, you read that right.
Release Timeline and Availability
Phainon first showed up in Version 3.4 (July 2-23, 2025) - feels like yesterday, honestly. Mydei's been around longer, debuting back in Version 3.1 (March 19 - April 8, 2025). Now they're both sharing the Indelible Coterie banner spotlight.
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Initial Impressions and Community Reception
The community's been pretty vocal about these two. Phainon earned his reputation as the Firefly for Physical teams - high damage floor, beginner-friendly, works in triple Harmony setups without a dedicated healer. That's... actually huge for newer players.
Mydei's reception has been more mixed. His HP-scaling mechanics are genuinely unique, and the immortal-like gameplay appeals to a specific crowd. But here's the catch - those auto-combat limitations make him feel niche compared to other Imaginary DPS options. Not bad, just... specialized.
Character Kit Analysis: Abilities Breakdown
Phainon's Complete Kit Review

Let's break down what makes this guy tick. Basic Attack hits for 100% ATK Physical damage with 20 Energy generation - nothing fancy here.
His Skill's where the magic starts. Two Coreflame stacks plus Blast damage (300% ATK to primary target, 120% to adjacent enemies) with 30 Energy. Stack management is key with Phainon.
The Ultimate though? That's his party trick. Requires 12 Coreflame stacks, but once you hit that threshold, he transforms into Khaslana form. Eight Extra Turns at 60% base Speed, +80% ATK, +270% Max HP, and complete crowd control immunity. The transformation ends with a Final Hit dealing 960% ATK distributed among enemies.
His Talent automatically triggers the Ultimate at 12 Coreflame - up to 3 excess stacks get refunded, which is nice quality-of-life design. Plus, he gains +1 Coreflame when targeted by allies or enemies. When teammates target him, he gets +30% Crit Damage for 3 turns.
During transformation, you've got three abilities: Creation: Bloodthorn Ferry (250% ATK single + 75% adjacent, generates 2 Bruises), Soulscorch Edict (75% Damage Reduction with 40% ATK AoE counter + 4x 30% ATK), and Foundation: Stardeath Verdict (consumes Bruises for up to 1170% ATK total damage at 4 Bruises).
Mydei's Complete Kit Review

Mydei's kit reads like someone asked what if we made a character who literally can't die? His Basic Attack deals 50% Max HP Imaginary damage with 20 Energy - already scaling differently than most DPS units.
Skill gets spicy. Consumes 50% current HP (minimum 1) for Blast damage - 90% Max HP to primary target, 50% to adjacent. Yeah, he's literally hurting himself to hurt enemies.
Ultimate restores 20% Max HP and 20 Charge while dealing Blast damage (160% Max HP single + 100% adjacent), plus applies Taunt for 2 turns. Self-healing and aggro management in one package.
The Talent's where his immortality complex kicks in. Gains +1 Charge per 1% HP lost, maximum 200. At 100 Charge, he enters Vendetta state - 25% Max HP restoration, 100% action advance, +50% Max HP, but 0 DEF. At 150 Charge, he gets an extra turn and access to Godslayer Be God.
Here's the kicker - for HP exceeding 6000, he gains +1.66% Charge from enemy damage per 100 excess HP, up to 6000 bonus. Build him tanky, and enemies literally fuel his power.
Vendetta abilities include auto-triggering Kingslayer Be King (35% current HP for 110% Max HP single + 66% adjacent) and Godslayer Be God (consumes all Charge for 280% Max HP single + 168% adjacent).
Damage Output Analysis
Single Target DPS Comparison
Numbers don't lie, and Phainon's putting up approximately 1,551k damage solo against single targets within 5 cycles. That's through consistent transformation mechanics - no RNG, no complex setup requirements.
Mydei's performance hinges on hitting 150 Charge for Godslayer activation. You'll need 8000+ HP builds to stay competitive, and his damage windows depend on HP management and enemy attack patterns.
The predictability factor matters here. Phainon gives you guaranteed 8 turns of enhanced damage. Mydei's duration? That's between you, your HP pool, and whatever the enemies decide to throw at you.
AoE Damage Capabilities
This is where Mydei starts flexing. His AoE performance is genuinely impressive, especially with E1 enabling full Godslayer multiplier to all enemies - we're talking 1.32M damage against 3 targets.
Phainon's AoE centers around Final Hit distribution and Blast abilities. He's T0.5 in Pure Fiction versus T0 in single-target content. Still good, just not Mydei-level AoE dominance.
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Team Composition Synergies
Best Supports for Phainon
Premium setup looks like Sunday, Bronya/Robin, and Huohuo. Action Advance, targeting mechanics, Energy support - the whole package. His self-sustain actually enables triple Harmony compositions (Sunday + Robin + Tingyun) for maximum damage output.
F2P players aren't left out. Remembrance Trailblazer, Tingyun, Lynx/Natasha works perfectly fine. Speed tuning targets 134+ to outpace supports for optimal buff application before transformation kicks in.
Best Supports for Mydei
Premium team wants Sunday for Action Advance/Energy/Crit, Tribbie for RES PEN, and Gallagher/Luocha for healing. Gallagher's Besotted scales with Blast abilities, while Luocha provides automatic healing below 50% HP - perfect for Mydei's self-damage mechanics.
F2P alternative: Remembrance Trailblazer, Pela, Lynx for sustain and aggro management. Speed considerations include 135 with Sunday or HP boots with Sparkle. E2 benefits from healing conversion to Charge (maximum 40 per action) - pretty neat synergy.
Equipment and Build Optimization
Light Cone Recommendations

Phainon's signature Thus Burns the Dawn provides +12-20% base Speed, 18-36% DEF ignore, and +60-132% damage post-Ultimate. Solid all-around option.
F2P alternative On the Fall of an Aeon offers +8-16% ATK stacks (maximum 4) and +12-24% damage post-Weakness Break. Not signature-level, but it'll get the job done.
Mydei's signature Flame of Blood, Blaze My Path grants +18-30% Max HP, +20-40% Incoming Healing, plus Skill/Ultimate HP consumption (6-8%) for +30-50% damage bonus. Perfectly tailored to his kit.
F2P option Ninja Record: Sound Hunt provides +12-24% Max HP and +18-36% Crit Damage on HP changes. Budget-friendly and synergizes with his HP fluctuation mechanics.
Relic Set Priorities
Phainon wants Wavestrider Captain 4-piece (+16% Crit Damage; +48% ATK on Ultimate with 2 Help stacks) plus Arcadia 2-piece (+27-36% solo damage). Main stats: Body Crit Rate/Damage, Feet Speed (134+), Orb ATK%/Physical%, Rope ATK%. Substats priority: Crit > Speed > ATK.
Mydei goes Scholar Lost in Erudition 4-piece (+8% Crit Rate; +20% Skill/Ultimate damage, +25% next Skill post-Ultimate) plus Bone Collection 2-piece (+12% Max HP; +28% Crit Damage at 5000+ HP). Main stats: Body Crit Damage/HP%, Feet Speed/HP%, Orb Imaginary%/HP%, Rope HP%. Substats: HP% > Crit > Speed, targeting 8000+ HP.
Eidolon Investment Analysis
Phainon Eidolon Breakdown
E1 gives +1.5% Speed per defeated enemy (up to 84%) and +50% Crit Damage on Ultimate for 3 turns. Medium priority - valuable in multi-enemy content but not game-changing.
E2's where things get serious. +20% Physical RES PEN and +1 Extra Turn on 4-Bruise Verdict. Very High priority for substantial single-target improvement and extended transformation windows.
E6 removes Coreflame overflow limits, grants +6 Coreflame at battle start, and adds +36% True Damage to highest HP enemies post-Verdict. Very High priority for eliminating downtime completely.
Mydei Eidolon Breakdown
E1 provides +30% Godslayer primary damage with full multiplier AoE to all enemies. Very High priority - this literally transforms him from single-target focused to effective AoE character.
E2 offers 15% enemy DEF ignore in Vendetta and converts 40% healing to Charge (maximum 40). High priority for faster state entry and consistent damage improvement.
E6 grants Vendetta entry at battle start and reduces Godslayer requirement to 100 Charge. High priority for eliminating setup time entirely.
Endgame Content Performance
Memory of Chaos Viability

Phainon achieves T0 rating through single-target focus and Break capabilities. His transformation provides consistent damage against tanky bosses, and self-sustain reduces team slot pressure significantly.
Mydei reaches T0.5 with competitive Blast damage and exceptional survival through three revives. Auto-combat can reduce targeting efficiency though - something to keep in mind.
Pure Fiction Performance
Phainon drops to T0.5 due to AoE limitations and random Stardeath Verdict targeting. Still viable, just not optimal.
Mydei achieves T1 rating, with E1 significantly improving performance through AoE Godslayer application. Night and day difference with that Eidolon.
Apocalyptic Shadow Usage
Phainon maintains T0 performance through Break capabilities and optimal transformation timing with boss phases. Mydei reaches T1 with survival mechanics providing encounter safety, though auto-combat limitations reduce effectiveness in complex encounters.
Pull Strategy and Resource Management
F2P Player Recommendations
Prioritize Phainon for Physical hypercarry progression. Beginner-friendly mechanics with reduced support requirements make him the safer investment.
Mydei appeals to players lacking Imaginary DPS but requires mandatory healer support and understanding of complex mechanics. Higher skill floor, potentially higher ceiling.
Dolphin and Whale Considerations
E0S1 investments benefit both characters. Phainon offers straightforward optimization, Mydei provides unique gameplay experience.
E2S1 represents optimal investment for dedicated mains - Phainon's E2 improves single-target significantly, while Mydei's E1/E2 enables versatile performance across content types.
Future Meta Considerations
Long-term Viability
Here's my honest take as someone who's watched this game's meta evolve: Phainon's high floor design provides accessibility but creates vulnerability to power creep from HP inflation and stalling mechanics. That fixed 8-action limitation might become problematic against future encounters.
Mydei's HP-scaling offers better power creep resistance - as enemy damage increases, so does his potential. Auto-combat limitations may become restrictive as encounter complexity increases though.
Both could benefit from potential Chrysos Heirs faction synergies down the line. Worth keeping an eye on.
FAQ
Q: Is Phainon better than Mydei for new players? Absolutely. Phainon offers higher damage floor and beginner-friendly mechanics with self-sustain enabling simpler team building. Less room for error.
Q: Which character needs their signature Light Cone more? Mydei's HP-scaling makes his signature more impactful for his overall performance. Phainon has more viable F2P alternatives that won't cripple his damage output.
Q: Can F2P players clear endgame content with either character? Yes, both clear Memory of Chaos at E0 with F2P Light Cones. Phainon requires less investment overall, while Mydei needs proper healer support to function optimally.
Q: How do their Eidolons compare in value? Phainon's E2 provides substantial single-target improvements, Mydei's E1 transforms him into an AoE character. Both E1 investments offer good value, but Mydei's is more transformative.
Q: Which character has better long-term meta value? Mydei's HP-scaling offers better power creep resistance theoretically. Phainon provides consistent accessibility regardless of meta shifts. Value depends on future content design philosophy.
Q: Should I pull both characters or focus on one? Focus on one unless you specifically need both Physical and Imaginary Destruction DPS coverage. Consider your element coverage gaps and available resources first.


















