March 7th (Preservation) Builds, Light Cones & Teams | Honkai: Star Rail

March 7th is a 4-star Ice Preservation character in Honkai: Star Rail that functions as a highly adaptable defensive anchor and counter-attack enabler. Her kit revolves around her Skill to apply a high-durability shield that not only protects allies but also increases their "taunt" value, effectively allowing her to manipulate the flow of enemy aggression. She’s essentially a tactical sustain unit who thrives on enemy hits, triggering immediate Follow-up Attacks whenever a shielded teammate is struck. With this unique playstyle, March 7th serves as a premier utility pick for teams that utilize counter-synergy and consistent AoE Freeze to disrupt enemy turns. This March 7th build guide dives into everything you need to know about her skills, the best ways to gear her up, and her top team synergies so you can turn her bubbly energy into a permanent win for your squad.

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March 7th Character Overview

• March 7th Information

Character Information
	Rarity	★★★★
	Element	Ice
	Path	Preservation
	Combat Role	Single-Target Shielder / Crowd Control

• March 7th Gameplay

March 7th is a 4-star Ice Preservation character who specializes in protecting single targets while enabling follow-up attack strategies through her signature counter-mechanic. Her Skill, The Power of Cuteness, provides a powerful shield to an ally that scales off her DEF. Uniquely, if the target has more than 30% HP, this shield increases their chance of being attacked, making her a premier "taunt-enabler" for characters who want to take hits. This mechanic provides a massive defensive buffer while remaining remarkably Skill Point-friendly once her A4 Trace extends the shield duration.

Her combat utility revolves around the synergy between her Talent and her shields. Whenever a shielded ally is attacked by an enemy, March 7th immediately performs a Counter, dealing Ice damage. This allows March to "piggyback" off enemy aggression for frequent out-of-turn damage and energy generation. Her Ultimate, Glacial Cascade, transitions her role into crowd control, dealing AoE Freeze damage with a high base chance to Freeze all enemies. During this state, enemies lose their turns and take additional damage, turning her into a relentless defensive engine that can cancel elite boss rotations.

March's passive Traces are what truly solidify her position as a core teammate for follow-up and counter attackers. Her A2 Trace is a game-changer, allowing her Skill to dispel 1 debuff from the target, which is vital for clearing CC in high-level 4.1 content (especially against the new Scalegorge elites). Her A4 Trace increases the shield duration to 4 turns, reinforcing her efficiency in long battles. Finally, her A6 Trace grants a 15% base chance increase to her Ultimate's Freeze, acting as a reliability boost that helps her maintain high crowd-control uptime and keep your team’s survivability peaking.

March 7th Trace Priority

March 7th’s Skill is her most vital trace because it defines her role as a protector. It provides a single-target shield based on her DEF, which is essential for keeping fragile allies alive. More importantly, it increases the Aggro of the shielded ally if their HP is above 30%, allowing you to control which character the enemies target. This makes her an excellent synergy partner for "Counter" units like Clara or Yunli.

Her Ultimate is a high priority due to its utility in crowd control. While its damage scaling is modest, its primary value lies in the high base chance to Freeze all enemies. Investing in this trace increases the damage, but more importantly, it ensures her Ultimate remains a reliable tool for disrupting enemy actions and providing your team with breathing room during intense encounters.

March 7th’s Talent is a mid-level priority. It governs the damage of her automatic counter-attacks whenever a shielded ally is hit. While she can counter up to two times per turn, the damage is rarely the focus of her build. However, leveling this trace is still beneficial as these counters help chip away at Ice Weakness and generate much-needed Energy for her Ultimate.

Her Basic ATK is the lowest priority. In most optimal rotations, March 7th only uses her Basic ATK to generate Skill Points (SP) when her shields are already active or when SP is scarce. The damage scaling is negligible, so your resources are better spent elsewhere. Prioritize unlocking her Bonus Traces instead, particularly Purify, which adds a crucial Debuff Cleanse to her Skill.

March 7th Best Light Cones

To select the ideal Light Cone for March 7th, evaluate your build against these three tactical needs rather than simply choosing by rarity:

• Maximizing Shield Absorption: Since March 7th’s single-target shield scales purely off her DEF, prioritize Light Cones like Moment of Victory or This Is Me!. These provide massive DEF% multipliers that ensure her shield remains a reliable safety net for your main DPS or tank. Moment of Victory is particularly valuable as it also increases her Aggro, allowing her to act as a frontline decoy and generate extra Energy through her automatic counter-attacks.

• Ensuring Freeze Reliability: March 7th’s Ultimate is a game-changing crowd-control tool, but its success depends on having enough Effect Hit Rate (EHR) to bypass enemy resistance. Using a Light Cone like Moment of Victory (her best-in-slot) bridges this gap, providing a significant 24% EHR boost. This is especially useful for reaching the thresholds needed to consistently freeze high-level bosses, effectively "healing" your team by preventing incoming damage before it happens.

• Bolstering Team-Wide Survival: Unlike most Preservation units who focus solely on personal tankiness, March can provide passive protection through Day One of My New Life. This Light Cone is her signature for a reason: it grants a permanent All-Type RES buff to all allies. This layer of team-wide mitigation is essential in AoE-heavy encounters, ensuring that even unshielded teammates can survive the stray hits that her single-target shield can't catch.

March 7th Relics, Ornaments & Stats Priority

1. Relics

The 4-piece Self-Enshrouded Recluse set stands as the absolute best choice for March 7th in the current meta, as it successfully bridges the gap between a pure protector and a dedicated offensive support. The 2-piece and 4-piece bonuses significantly amplify her Shield Effect, but the true value lies in the unique passive that grants a 15% CRIT DMG boost to any ally protected by her shield. If you are looking for a more traditional, "unkillable" build, the 4-piece Knight of Purity Palace remains a powerful second-best option, focusing entirely on maximizing raw damage absorption to ensure your team can weather the most punishing boss rotations. Finally, for a more accessible and high-speed build, a 2-piece hybrid of Knight of Purity Palace and Sacerdos' Relived Ordeal is a reliable third choice, offering a balanced mix of shield thickness and a permanent 6% SPD boost to keep her skill cycling efficiently.

2. Planar Ornaments

The Broken Keel set stands as the premier choice for a utility-focused March 7th, as it rewards her natural need for Effect RES by granting a permanent 10% CRIT DMG aura to all allies once the 30% threshold is met. For teams that rely heavily on raw power, Fleet of the Ageless serves as a reliable second-best option, providing a team-wide 8% ATK boost that ensures her presence is felt even when her shields aren't being actively tested. If you are running her alongside other Ice-type damage dealers, Penacony, Land of the Dreams is a powerful third choice that streamlines her Energy Regeneration while amplifying the elemental damage of her teammates. Finally, for a more specialized support role, Lushaka, the Sunken Seas offers a niche yet effective alternative that focuses on bolstering the offensive capabilities of the first ally in your team lineup, ensuring your primary carry always has an extra edge in combat.

3. Stats Priority

March 7th Best Teams

To choose the best team for March 7th, look for aggressive, counter-attack compositions where your primary damage dealers thrive on taking enemy hits to trigger their own abilities. Because her shield increases the Aggro of its target, she is a game-changer for allies who need to be targeted to maximize their output, effectively funneling enemy strikes toward them while keeping them protected. Her Talent acts as a reliable off-turn toughness-breaking engine, making her a perfect fit for follow-up attack strategies that benefit from frequent, automatic strikes. Additionally, her ability to Freeze the entire enemy field and Purify debilitating debuffs makes her a comfortable, utility-minded pick for any lineup that requires a blend of focused single-target protection and wide-scale battlefield control.

March 7th Eidolons

 Eidolon Performance

Eidolon Effect

Conclusion

March 7th is far more than just a starter shielder; she is a versatile defensive anchor that truly finds her stride in Counter-Attack and highly disruptive crowd-control compositions. Her kit is built around her single-target shield and the automatic strikes of her counters, which essentially allow her to manipulate enemy aggro and increase the survivability of her allies while acting as a reliable energy battery for herself. By focusing on her DEF, Speed, and Effect Hit Rate stats, you ensure her shields remain impenetrable while keeping her Ultimate ready to freeze entire enemy waves exactly when the team needs a moment to breathe.

In the heat of endgame content, March 7th stands out because she provides a unique blend of protection and disruption that traditional Preservation characters cannot match, amping up the squad's overall stability by providing essential cleanses and specialized aggro control for your tanks or counter-attackers. To take your March 7th to the next level and strengthen your team, consider topping up Honkai: Star Rail through LootBar. Their platform offers a safe and convenient way to get the Oneiric Shards you need for Characters or Eidolons at significantly lower prices. Don't miss out on maximizing your account's potential; head over to LootBar and prepare your squad for the toughest challenges!