What Combat Type is March 7th?

March 7th is a 4-star Ice character on the Path of Preservation, from Astral Express, released in version 1.0.

What stat does March 7th scale on?

March 7th's abilities multiply DEF. That is read from the scaling rows on the Skill and Ultimate, not from the ability description, so it reflects what the game actually multiplies rather than what the text mentions.

What is the best Light Cone for March 7th?

Inherently Unjust Destiny is the closest fit on the data: it is a 5-star Preservation Light Cone with 423 base ATK at level 80, and its passive acts on DEF. Concert for Two is the best 4-star alternative.

Which relic set should March 7th use?

Hunter of Glacial Forest. Its 2-piece bonus is: Increases Ice DMG by 10%. Its 4-piece bonus is: After the wearer uses their Ultimate, their CRIT DMG increases by 25% for 2 turn(s).

Which Planar Ornament should March 7th use?

Giant Tree of Rapt Brooding. Its 2-piece bonus is: Increases the wearer's SPD by 6%. When the wearer's SPD is 135/180 or higher, the wearer and their memosprite's Outgoing Healing increases by 12%/20%. Planar Ornaments have no 4-piece bonus; the sphere and the rope are the whole set.

How much does it cost to max March 7th's traces?

Taking one ability from level 1 to 10 costs 522,000 Credits and 1× Tracks of Destiny among other materials. The Materials tab lists every item per level.

What does March 7th E1 do?

Memory of You: Every time March 7th's Ultimate Freezes a target, she regenerates 6 Energy.

March 7th — Ice Preservation character | Honkai: Star Rail

All characters

Astral Express

March 7th

Build guide · Honkai: Star Rail

IcePreservationSustain

English voice: Skyler Davenport

The best March 7th build in Honkai: Star Rail (Version 4.4) is Inherently Unjust Destiny with Self-Enshrouded Recluse. Updated August 28, 2026

Where these rankings come fromThe light cone order, relic sets and stat priorities on this tab are prydwen.gg’s, measured in play and rephrased. Relative damage figures are ratios against the bottom of each ranking, not absolute numbers, and each one holds only for the superimposition and team its row states. Everything else — base stats, passive text, material totals — is read from the game’s own data.

Light cones

7 ranked

Inherently Unjust Destiny — 5★ Preservation Light Cone | Honkai: Star Rail

BISInherently Unjust Destiny

Ranked first at S1

423

Base ATK · lv 80

1058 HP662 DEF

Journey, Forever Peaceful — 4★ Preservation Light Cone | Honkai: Star Rail

#2Journey, Forever Peaceful

Ranked #2 at S5

370

Base ATK · lv 80

1058 HP529 DEF

Day One of My New Life — 4★ Preservation Light Cone | Honkai: Star Rail

#3Day One of My New Life

Ranked #3 at S5

370

Base ATK · lv 80

953 HP463 DEF

Texture of Memories — 5★ Preservation Light Cone | Honkai: Star Rail

#4Texture of Memories

Ranked #4 at S5

423

Base ATK · lv 80

1058 HP529 DEF

Moment of Victory — 5★ Preservation Light Cone | Honkai: Star Rail

#5Moment of Victory

Ranked #5 at S1

476

Base ATK · lv 80

1058 HP595 DEF

Relics

2 sets

CoreSelf-Enshrouded Recluse

Best set for Shield based characters, improving their Shield strength and providing a team-wide CRIT DMG buff.

2PCThe provided Shield Effect increases by 10%.

4PCIncreases the Shield Effect provided by the wearer by 12%. When an ally target holds a Shield provided by the wearer, the ally target's CRIT DMG increases by 15%.

Also works

Knight of Purity Palace

Planar ornaments

Sphere and rope · 2-piece only

CoreBroken Keel

An option for supports stacking Effect RES, while also increasing the entire team's CRIT DMG. Requires at least 30% Effect RES to activate.

2PCIncreases the wearer's Effect RES by 10%. When the wearer's Effect RES is at 30% or higher, all allies' CRIT DMG increases by 10%.

Also works

Main stats

Ultimate · 120 energy

Body: Effect HIT Rate >= DEF%
Feet: Speed
Planar Sphere: DEF%
Link Rope: Energy Regen Rate >= DEF%

Substat priority

Highest first

1Effect Hit Rate (Until 64% OR skip if no Freeze build) = SPD (Breakpoint)Best
2DEF%
3HP% = Effect RES

This build focuses on creating the strongest Shields possible and some Effect Hit Rate to land the Freeze.

Trace priority

Level in this order

#1
Skill
Max first
#2
Ultimate = Talent = Basic
Then

Major traces, best first: Purify (A2) > Ice Spell (A6) > Reinforce (A4)

Best Eidolons

E3 and E5 raise levels only

E1Memory of You
E2Memory of It
E3Level bump
E4Never Forfeit Again
E5Level bump
E6Just Like This, Always...

E1
Memory of You
Game text
Every time March 7th's Ultimate Freezes a target, she regenerates 6 Energy.
E2
Memory of It
Game text
Upon entering battle, grants a Shield equal to 24% of March 7th's DEF plus 320 to the ally with the lowest HP percentage, lasting for 3 turn(s).
E4
Never Forfeit Again
Game text
The Talent's Counter effect can be triggered 1 more time in each turn. The DMG dealt by Counter increases by an amount that is equal to 30% of March 7th's DEF.
E6
Just Like This, Always...
Game text
Allies under the protection of the Shield granted by the Skill restore HP equal to 4% of their Max HP plus 106 at the beginning of each turn.

Teams

1 team

Clara team

Physical · CounterPlays Shield · taunt

Clara counters whoever attacks her, so the Preservation slot is there to make her the target and the follow-up partner is there for the turns she is not hit.

ClaraMain DPS
Topaz & NumbyFollow-up partner
March 7th — this characterShield · taunt
NatashaSustain

All teams, with every replacement

Honkai: Star Rail 4★ Ice Preservation Sustain

March 7th build summary

Updated August 28, 2026

Inherently Unjust Destiny tops the light cone ranking for March 7th at S1, ahead of Journey, Forever Peaceful, Day One of My New Life and Texture of Memories. That order is prydwen.gg's, measured in play and rephrased here; every row of it sits under Light cones below.

Run Self-Enshrouded Recluse on March 7th, with Knight of Purity Palace behind it. The planar ornament is Broken Keel. Main stats are Effect HIT Rate >= DEF% body, Speed feet, DEF% sphere, Energy Regen Rate >= DEF% rope. Roll substats in the order Effect Hit Rate (Until 64% OR skip if no Freeze build) = SPD (Breakpoint) > DEF% > HP% = Effect RES.

Trace priority is Skill > Ultimate = Talent = Basic. The Ultimate costs 120 energy, which is what an Energy Regeneration Rate target has to clear.

March 7th plays Shield · taunt in the Clara team, alongside Clara, Topaz & Numby and Natasha.

Role: Sustain
Best light cone: Inherently Unjust Destiny
Alternatives: Journey, Forever Peaceful, Day One of My New Life, Texture of Memories
Relic set: Self-Enshrouded Recluse
Planar ornament: Broken Keel
Main stats: Effect HIT Rate >= DEF% body, Speed feet, DEF% sphere, Energy Regen Rate >= DEF% rope
Substat priority: Effect Hit Rate (Until 64% OR skip if no Freeze build) = SPD (Breakpoint) > DEF% > HP% = Effect RES
Trace priority: Skill > Ultimate = Talent = Basic
Best team: Clara, Topaz & Numby, March 7th, Natasha
Ultimate energy cost: 120 energy
Key ascension material: 12× Conqueror's Will
Last updated: August 28, 2026

Abilities

4 levellable

Basic

Frigid Cold Arrow

Single Target
+20 energy
30 Toughness

Deals Ice DMG equal to 100% of March 7th's ATK to one enemy.

Ability level

6 is the cap from trace materials; Eidolons add the rest.

Basic ATK DMG: 100%

All 10 levels

Attribute	1	2	3	4	5	6	7	8	9	10
Basic ATK DMG	50%	60%	70%	80%	90%	100%	110%	120%	130%	140%

Skill

The Power of Cuteness

Defense
+30 energy

Provides a single ally with a Shield that can absorb DMG equal to 57% of March 7th's DEF plus 760 for 3 turn(s). If the ally's current HP percentage is 30% or higher, greatly increases the chance of enemies attacking that ally.

Ability level

10 is the cap from trace materials; Eidolons add the rest.

Shield: 57%
Shield (2): 760

All 15 levels

Attribute	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Shield	38%	40%	43%	45%	48%	49%	51%	53%	55%	57%	59%	61%	63%	65%	67%
Shield (2)	190	304	390	475	532	589	632	675	717	760	803	846	888	931	974

Ultimate

Glacial Cascade

AoE
+5 energy
60 Toughness

Deals Ice DMG equal to 150% of March 7th's ATK to all enemies. Hit enemies have a 50% base chance to be Frozen for 1 turn(s). While Frozen, enemies cannot take action and will receive Ice Additional DMG equal to 60% of March 7th's ATK at the beginning of each turn.

Ability level

10 is the cap from trace materials; Eidolons add the rest.

AoE DMG: 150%
Ultimate DMG: 60%

All 15 levels

Attribute	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
AoE DMG	90%	96%	102%	108%	114%	120%	127%	135%	143%	150%	156%	162%	168%	174%	180%
Ultimate DMG	30%	33%	36%	39%	42%	45%	49%	53%	56%	60%	63%	66%	69%	72%	75%

Talent

Girl Power

Single Target
+10 energy
30 Toughness

After a Shielded ally is attacked by an enemy, March 7th immediately Counters, dealing Ice DMG equal to 100% of her ATK. This effect can be triggered 2 time(s) each turn.

Ability level

10 is the cap from trace materials; Eidolons add the rest.

Talent DMG: 100%

All 15 levels

Attribute	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Talent DMG	50%	55%	60%	65%	70%	75%	81%	88%	94%	100%	105%	110%	115%	120%	125%

Technique and fixed effects

1 fixed

Technique

Freezing Beauty

60 Toughness

Immediately attacks the enemy. After entering battle, there is a 100% base chance to Freeze a random enemy for 1 turn(s). While Frozen, the enemy cannot take action and will take Ice Additional DMG equal to 50% of March 7th's ATK at the beginning of each turn.

Bonus Abilities

3 unlocked by ascension

A2
Purify
When using Skill, dispels 1 debuff from one designated ally.
A4
Reinforce
The duration of the Shield generated from Skill is extended for 1 turn(s).
A6
Ice Spell
When using Ultimate, increases the base chance to Freeze enemies by 15%.

Stat traces

Every node taken

Ice DMG: 22.4%
DEF: 22.5%
Effect RES: 10.0%

Totals at full unlock, summed across every node of that stat. Ascension rank gates the nodes as it gates the Bonus Abilities above.

Full bill

Credits, summed from the tables below

Level 80 and every ability maxed

1,812,400

Credits 12 material lines

Ascension to 80

246,400

Credits 4 materials · 6 steps

All 3 abilities maxed

1,566,000

Credits 3× the single-ability bill

Ascension

Level 1 → 80 in 6 steps

Lv 30
Thief's Instinct ×4
3,200Credits
Lv 40
Thief's Instinct ×8
6,400Credits
Lv 50
Horn of Snow ×2
Usurper's Scheme ×5
12,800Credits
Lv 60
Horn of Snow ×5
Usurper's Scheme ×8
32,000Credits
Lv 70
Conqueror's Will ×5
Horn of Snow ×15
64,000Credits
Lv 80
Conqueror's Will ×7
Horn of Snow ×28
128,000Credits

Total to level 80

246,400 Credits

Conqueror's Will

Horn of Snow

Usurper's Scheme

Thief's Instinct

Trace materials

Per ability · 3 levellable

→ 2
Thief's Instinct ×2
2,000Credits
→ 3
Endurance of Bronze ×2
Thief's Instinct ×4
4,000Credits
→ 4
Oath of Steel ×2
Usurper's Scheme ×2
8,000Credits
→ 5
Oath of Steel ×4
Usurper's Scheme ×3
16,000Credits
→ 6
Oath of Steel ×6
Usurper's Scheme ×5
24,000Credits
→ 7
Conqueror's Will ×2
Safeguard of Amber ×2
36,000Credits
→ 8
Conqueror's Will ×3
Destroyer's Final Road ×1
Safeguard of Amber ×4
64,000Credits
→ 9
Destroyer's Final Road ×1
Safeguard of Amber ×6
128,000Credits
→ 10
Tracks of Destiny ×1
Destroyer's Final Road ×1
Safeguard of Amber ×11
240,000Credits

One ability maxed

522,000 Credits

Tracks of Destiny

Conqueror's Will

Destroyer's Final Road

Safeguard of Amber

Oath of Steel

Usurper's Scheme

Endurance of Bronze

Thief's Instinct

All 3 abilities maxed

1,566,000 Credits

Tracks of Destiny

Conqueror's Will

Destroyer's Final Road

Safeguard of Amber

Oath of Steel

Usurper's Scheme

Endurance of Bronze

Thief's Instinct

March 7th’s Eidolons

6 unlocks

E1
Memory of You
Every time March 7th's Ultimate Freezes a target, she regenerates 6 Energy.
E2
Memory of It
Upon entering battle, grants a Shield equal to 24% of March 7th's DEF plus 320 to the ally with the lowest HP percentage, lasting for 3 turn(s).
E3
Memory of Everything
Ultimate Lv. +2, up to a maximum of Lv. 15. Basic ATK Lv. +1, up to a maximum of Lv. 10.
E4
Never Forfeit Again
The Talent's Counter effect can be triggered 1 more time in each turn. The DMG dealt by Counter increases by an amount that is equal to 30% of March 7th's DEF.
E5
Never Forget Again
Skill Lv. +2, up to a maximum of Lv. 15. Talent Lv. +2, up to a maximum of Lv. 15.
E6
Just Like This, Always...
Allies under the protection of the Shield granted by the Skill restore HP equal to 4% of their Max HP plus 106 at the beginning of each turn.

March 7th FAQ

What Combat Type is March 7th?: March 7th is a 4-star Ice character on the Path of Preservation, from Astral Express, released in version 1.0.
What stat does March 7th scale on?: March 7th's abilities multiply DEF. That is read from the scaling rows on the Skill and Ultimate, not from the ability description, so it reflects what the game actually multiplies rather than what the text mentions.
What is the best Light Cone for March 7th?: Inherently Unjust Destiny is the closest fit on the data: it is a 5-star Preservation Light Cone with 423 base ATK at level 80, and its passive acts on DEF. Concert for Two is the best 4-star alternative.
Which relic set should March 7th use?: Hunter of Glacial Forest. Its 2-piece bonus is: Increases Ice DMG by 10%. Its 4-piece bonus is: After the wearer uses their Ultimate, their CRIT DMG increases by 25% for 2 turn(s).
Which Planar Ornament should March 7th use?: Giant Tree of Rapt Brooding. Its 2-piece bonus is: Increases the wearer's SPD by 6%. When the wearer's SPD is 135/180 or higher, the wearer and their memosprite's Outgoing Healing increases by 12%/20%. Planar Ornaments have no 4-piece bonus; the sphere and the rope are the whole set.
How much does it cost to max March 7th's traces?: Taking one ability from level 1 to 10 costs 522,000 Credits and 1× Tracks of Destiny among other materials. The Materials tab lists every item per level.
What does March 7th E1 do?: Memory of You: Every time March 7th's Ultimate Freezes a target, she regenerates 6 Energy.

March 7th

Light cones

Relics

Planar ornaments

Main stats

Substat priority

Trace priority

Best Eidolons

Memory of You

Memory of It

Never Forfeit Again

Just Like This, Always...

Teams

Abilities

Technique and fixed effects

Bonus Abilities

Purify

Reinforce

Ice Spell

Stat traces

Full bill

Ascension

Trace materials

March 7th’s Eidolons

Memory of You

Memory of It

Memory of Everything

Never Forfeit Again

Never Forget Again

Just Like This, Always...

March 7th FAQ