You can beat the main campaign of Honkai: Star Rail using only "SP" (alternate or remade) characters, but success requires navigating a severe early-game roster shortage and playing without a dedicated healer. Because alternate versions of existing cast members unlock gradually across different planets, you must rely on Path-switching for the Trailblazer and tight Skill Point (SP) management around your primary damage dealer, Dan Heng • Imbibitor Lunae.

Eligible Characters and Challenge Rules

In this challenge format, your party is restricted exclusively to remade, alternate forms of characters who already exist in the base cast. Standalone original characters (such as Seele, Jing Yuan, or Kafka) are banned.

The eligible roster includes:

  • Trailblazer (Physical Destruction): Your default starter form.
  • Trailblazer (Fire Preservation): Defensive tank unlocked through story progression.
  • Trailblazer (Imaginary Harmony): Break-focused support unlocked later in the campaign.
  • March 7th (Imaginary Hunt): Four-star alternate sub-DPS unlocked during Xianzhou Luofu storyline progression.
  • Dan Heng • Imbibitor Lunae: Five-star Imaginary Destruction alternate banner unit.

Because the prologue on Herta Space Station does not provide access to alternate forms immediately, standard bridging units (such as Yanqing) are permitted strictly as temporary fillers to clear tutorial segments. Once you unlock your first official Path swap, your team locks permanently into valid SP units.

Progression Milestones and Roster Unlocks

Your operational options expand as you clear major planetary story arcs:

  1. Herta Space Station and Early Jarilo-VI: You rely on the base Physical Destruction Trailblazer alongside temporary story fillers. Conserve combat skill points by weaving basic attacks to break elite weaknesses.
  2. Cocolia Boss Defeat (Jarilo-VI Climax): Defeating Cocolia unlocks the Fire Preservation Trailblazer. This milestone provides your account with its first true SP defensive unit, allowing you to retire all temporary filler units permanently.
  3. Xianzhou Luofu Progression: Unlocking March 7th (The Hunt) introduces your primary sub-DPS. Obtaining Dan Heng • Imbibitor Lunae provides the heavy damage necessary for high-health story encounters.
  4. Penacony Storyline: Unlocking the Harmony Trailblazer grants access to Super Break damage mechanics, offering an offensive alternative to the Preservation form for phases requiring rapid burst damage.

Core SP-Only Roster and Synergy

Character VariantPathCombat RolePrimary Synergy
Trailblazer (Preservation)PreservationShield Tank / TauntGenerates Skill Points and absorbs lethal single-target boss hits
Trailblazer (Harmony)HarmonyBreak SupportIncreases team Break Effect and enables Super Break damage windows
March 7th (The Hunt)HuntSub-DPS / BuffDesignates a Master, charges attacks off ally hits, and uses minimal Skill Points
Dan Heng • Imbibitor LunaeDestructionHypercarry DPSDeals heavy multi-target burst damage via enhanced basic attacks

March 7th (The Hunt) functions as the structural bridge of the team. Her skill designates an ally as her "Master." When paired with Dan Heng • Imbibitor Lunae, March gains Charge whenever he attacks, triggering frequent enhanced attacks and extra toughness reduction without consuming your team's limited Skill Points.

Managing Sustain and Skill Point Deficits

The most critical challenge of an SP-only run is the complete lack of a dedicated SP Abundance healer. Your entire defensive plan depends on damage mitigation and turn manipulation.

To survive boss encounters without incoming healing:

  • Rely on Preservation Shields: Use Preservation Trailblazer’s skill taunt strictly before telegraphed enemy ultimate attacks, relying on passive shielding for general chip damage.
  • Equip Energy Regeneration: Equip an Energy Regeneration Rate link rope on Preservation Trailblazer to maintain frequent shield uptime via their Ultimate.
  • Conserve Skill Points for Imbibitor Lunae: Dan Heng • Imbibitor Lunae consumes up to three Skill Points per turn to cast Fulgurant Leap. Keep Preservation Trailblazer on basic attacks during off-turns to feed this rotation.
  • Leverage Hunt March's Economy: March 7th only spends a Skill Point once to designate her Master, acting as a net-positive Skill Point generator for the remainder of the battle.
  • Tune Speed Relics: Ensure your Preservation Trailblazer and March 7th act before enemy elites to apply shields and designate the Master buff before taking heavy incoming damage.
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Emily Johnson

Emily Johnson

Emily writes practical mobile strategy guides with a focus on resource planning, base progression, and the early decisions that shape a long-term account.