Abyss Post Bird Quest Guide (February 2026) All Rewards & Letters
The Abyss Post Bird questline is a limited-time delivery quest running during the Valentine’s Event (February 14 – February 28,…
Honkai Star Rail 4.0 introduced @SparxiConOfficial the boss version of Sparxie in the No Aha at Full Moon Trailblaze Mission (February 12, 2026). She splits your battlefield into two planes, making this one of HSR’s most unique fights. Here’s everything you need to beat her.
| Detail | Info |
|---|---|
| Boss Name | @SparxiConOfficial |
| Faction | Imagenae |
| Released | February 12, 2026 (Version 4.0) |
| Weaknesses | Quantum, Fire, Imaginary |
| Key Mechanic | Live Showdown (dual-plane combat) |
| Recommended Path | Elation |
The boss fight revolves entirely around Live Showdown, which splits combat into a prime field and a sub-field.
When Sparxie activates “Get On the Mic!”, one character is sent to the sub-field to fight separate enemies while your other three remain in the prime field. Characters on different planes cannot attack each other except Elation skills, which can cross planes and hit prime-field enemies regardless.
While Live Showdown is active, prime-field enemies take significantly reduced damage, making your main DPS nearly useless until it resolves.
Live Showdown ends when any of these occur:
Failure consequence: Sparxie casts “Commence Chat Bombing!” massive AoE damage, delayed ally actions, free extra turn for herself, and Entanglement on the sub-field character.
| Phase | Sub-Field Enemies |
|---|---|
| Phase 1 | 3× Aggressive Reading Material |
| Phase 2 | Aggressive Reading Material + Live Stream Assistant + Aggressive Reading Material |
Tip: Sub-field allies gain “Ally Gratuity” (+5% All-Type RES PEN per stack, up to 4). Send a tough DPS who can clear those enemies fast.
Elation characters completely bypass the plane-separation mechanic since their skills can target enemies across battlefields. If you don’t have Elation units, use Quantum, Fire, or Imaginary damage dealers to exploit her weaknesses.
| Role | Best Options |
|---|---|
| DPS | Sparxie, Phainon, Archer, Castorice, Dan Heng IL, Seele |
| Support | Yao Guang, Sunday, Tribbie, Jade, Sparkle, Robin, Silver Wolf |
| Sustain | Dan Heng Permansor Terrae, Huohuo, Hyacine, Fu Xuan, Aventurine, Gallagher |
| Team Name | Characters |
|---|---|
| Elation (Optimal) | Sparxie + Sparkle + Yao Guang + Huohuo |
| Phainon Hypercarry | Phainon + Sunday + Sparkle/Bronya + Dan Heng PT |
| Archer Hypercarry | Archer + Sparkle + Yao Guang + Dan Heng PT |
| Castorice Hypercarry | Castorice + Tribbie + Evernight + Hyacine |
The Elation team is strongest Sparxie and Yao Guang deal Elation DMG that hits across both planes, making Live Showdown nearly irrelevant.
She’s weak to Quantum, Fire, and Imaginary damage. Seele, Phainon, and Dan Heng Imbibitor Lunae are all solid picks.
Yes. Send a strong DPS into the sub-field, clear it quickly, then burst Sparxie during the damage window. Use Quantum/Fire/Imaginary dealers.
Sparxie triggers Commence Chat Bombing — AoE Quantum damage, ally action delays, a free extra turn for herself, and Entanglement on your sub-field character.
Pair any strong Quantum or Imaginary DPS (Seele, Dan Heng IL) with Sparkle and a healer. Prioritize clearing the sub-field on every rotation.
