Form of Thunder is Honkai: Star Rail's Boulder Town Martial Exhibition Day 7 challenge. See how to clear Exhibition Matches in 5 cycles, the best teams, stage details, and all the rewards here!

Boulder Town Martial Exhibition Event Guides
Event Guide	Day 1	Day 2	Day 3
Day 4	Day 5	Day 6	Day 7

Boulder Town Martial Exhibition Day 7 Teams

Form of Thunder Best Team

Best Team for Day 7
Jing Yuan	Arlan	Bronya	Huohuo

Jing Yuan and Arlan are Day 7's Trial Characters.

Jing Yuan will be the main DPS for this stage, while Arlan will be the Sub-DPS. With the help of Day 7's buffs, Jing Yuan or Arlan can easily spam their Ultimates by inflicting Weakness Break on enemies.

Bronya's role is to provide an extra turn for one of the DPS after the enemies recover from Weakness Break. After round 1, the extra turn may help Jing Yuan or Arlan break one of the enemies' shields again before a cycle ends, allowing them to use their Ultimate again.

Huohuo's role is to heal Arlan in case he needs it since Arlan’s Skill drains his HP. Huohuo's Ultimate can also boost the team's ATK and provide some Energy. But, if you do not need a healer for Day 7, you can replace her with one of the supports below!

Alternative Characters

Character	Merits
Topaz	Arlan or Support Replacement Using Topaz's Skill on an enemy will increase Jing Yuan's Lightning-Lord DMG, which will help finish off the enemies on the field after spamming Jing Yuan's Ultimate.
Tingyun	Support or Healer Replacement If you think you can use more DMG and ATK for your DPS, you can add Tingyun to your team. Tingyun can provide an ATK buff for Jing Yuan or Arlan using her Skill. If needed, Tingyun's Ultimate can also help fill out their Energy quickly.
Bailu	Healer Replacement With Bailu, you can use her Basic ATK to chip off the enemies' Toughness Bar so your DPS can Weakness Break them. You will most likely not use her Skill to heal allies. Instead, just use her Ultimate for heals.

Form of Thunder Best F2P Team

Best Free-to-Play Team for Day 7
Jing Yuan	Arlan	Asta	Natasha

Jing Yuan and Arlan are Day 7's Trial Characters.

Jing Yuan and Arlan will be your DPS, while Asta will provide ATK and SPD buffs for the party. Natasha can use her Ultimate or Skill to heal Arlan in case he needs it after using his Skill.

Alternative Characters

Character	Merits
Yukong	Healer Replacement If survivability is not an issue, you can swap out Natasha for Yukong to provide CRIT Rate and CRIT DMG buffs to the team.

Best Buffs for Day 7

Martialism	Buff Effect
Thunder	When allies use Lightning-Type Ultimates to attack enemies, they will deal 1 extra Thunderous Slaps.
Frontal Palm	When allies Break enemy Weaknesses, the ally regenerates Energy equal to 100% of their Max Energy.
Duo Palm Ear Strike	When enemies receive Thunderous Slap, they will also receive Thunderous Slaps 3 extra time(s).

How to Clear the Exhibition Match in 5 Cycles

Constantly Weakness Break Enemies

If you follow our recommended buffs, inflicting Weakness Break on enemies is important because when a character breaks an enemy's shield, they will instantly regenerate 100% of their Max Energy. With this, you can spam their Ultimates.

It is also important for Jing Yuan or Arlan to be the ones inflicting Weakness Break on enemies since they are your damage dealers for Day 7. Additionally, their Ultimates deal extra damage due to the Thunderous Slaps effect.

Use Ultimates Immediately

Use Jing Yuan and Arlan's Ultimates immediately since you will likely be spamming it within one cycle. Whenever you use their Ultimates, make sure that you are breaking an enemy's shield after using it to trigger Frontal Palm and regain Max Energy!

Form of Thunder Stage Information

Day 7 Trial Characters

Trial	Character Build
Jing Yuan	Make the World Clamor The Ashblazing Grand Duke Inert Salsotto
Arlan	A Secret Vow Band of Sizzling Thunder Inert Salsotto

All Available Buffs in Day 7

Martialism	Buff Effect
Thunder	When allies use Lightning-Type Ultimates to attack enemies, they will deal 1 extra Thunderous Slaps.
Frontal Palm	When allies Break enemy Weaknesses, the ally regenerates Energy equal to 100% of their Max Energy.
Reverse Palm	Summon 1 Mask(s) of No Thought at the start of every Cycle. After defeating this target, all allies will regenerate Energy equal to 100% of their max Energy.
Duo Palm Plummet Strike	After allies use Lightning-Type Ultimates to attack enemies, they will permanently increase the attack count that targets receive from Thunderous Slap by 2.
Duo Palm Ear Strike	When enemies receive Thunderous Slap, they will also receive Thunderous Slaps 3 extra time(s).

Form of Thunder Day 7 Enemies

Round	Enemies	Weaknesses
1	Automaton Hound x4
	Automaton Spider x3
2	Searing Prowler x2
	Imaginary Weaver x2
	Mask of No Thought x1 Only summoned if Reverse Palm was selected.
3	Automaton Direwolf x1
	Automaton Grizzly x1
	Automaton Spider (Summon) x2

Boulder Town Martial Exhibition Day 7 Rewards

All Limited-Time Rewards

Objectives	Rewards
Clear the exhibition match within 8 cycles.	Stellar Jade x40 Traveler's Guide x3 Ancestral Hymn x3
Clear the exhibition match within 7 cycles.	Stellar Jade x30 Refined Aether x3 Lost Crystal x3
Clear the exhibition match within 6 cycles.	Relic Remains x20 Credit x30000

Obtain Fragmented Record of Belobog Ancient Martial Arts

After clearing Day 7 and becoming the undisputed champion of the inaugural martial Exhibition, Dr. Dig will give you a secret prize which is the Fragmented Record of Belobog Ancient Martial Arts.

The booklet is a Mission Item that can be used to interact with a blue Sandbag inside the Fight Club in Boulder Town.

How to Use Fragmented Record of Belobog Ancient Martial Arts

Form of Thunder Information

Part of Boulder Town Martial Exhibition

Day 7 Unlock	December 12, 2023

Form of Thunder is the Boulder Town Martial Exhibition Day 7 stage, where you must bring Lightning Characters against the enemies to get rewards!

Boulder Town Martial Exhibition Event Guide

Honkai: Star Related Guides

Boulder Town Martial Exhibition Event Guide

Boulder Town Martial Exhibition Event Day Guides

Stage	Trial Characters and Unlock Date
Day 1	◆ Argenti ◆ Luka ◆ Unlocked on December 6, 2023
Day 2	◆ Jingliu ◆ Pela ◆ Unlocked on December 7, 2023
Day 3	◆ Guinaifen ◆ Asta ◆ Unlocked on December 8, 2023
Day 4	◆ Sampo ◆ Kafka ◆ Unlocked on December 9, 2023
Day 5	◆ Seele ◆ Silver Wolf ◆ Unlocked on December 10, 2023
Day 6	◆ Imbibitor Lunae ◆ Welt ◆ Unlocked on December 11, 2023
Day 7	◆ Jing Yuan ◆ Arlan ◆ Unlocked on December 12, 2023

Other Upcoming and Current Events

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