Honkai Star Rail Topaz and Numby Build Guide

Honkai Star Rail Topaz and Numby Build Guide


6 minute read

Topaz and Numby Honkai Star Rail is the fresh Fire unit introduced in the second phase of Honkai Star Rail 1.4. This unique duo has quickly captured the hearts of fans, standing out as a favorite in the world of Honkai Star Rail. In this guide, we will cover everything you need to know about building Topaz and Numby.

Who is Honkai Star Rail Topaz and Numby?

Honkai Star Rail Topaz & Numby Build Guide

Topaz and Numby is a 5-star character following the Path of Hunt. Topaz serves as the leader of the Special Debts Picket Team and is a high-level manager in the Strategic Investment Department within the Interastral Peace Corporation. Having been a member of the "Ten Stonehearts" from a young age, Topaz's primary expertise lies in "debt retrieval."

Her partner, the Warp Trotter "Numby," shares a remarkable talent for detecting hidden "riches," making tasks in security, debt collection, and actuarial fields seemingly effortless. Together, they journey through the cosmos, sorting out various liability disputes that might disrupt the stable progression of the IPC's businesses.

Honkai Star Rail Topaz and Numby’s Abilities

Abilities

Effect

Basic Attack

Deficit...

Inflicts Fire damage equal to 50% of Topaz’s Attack on a single enemy

Skill

Difficulty Paying?

Imposes Proof of Debt status on one enemy, increasing their damage taken from subsequent attacks by 25%. Topaz can apply this status to a new enemy when an ally's turn starts. Numby deals Fire damage equal to 75% of Topaz's Attack to this target. Using this skill counts as a follow-up attack

Ultimate

Turn a Profit!

Numby gains the Windfall Bonanza! State, increasing damage and CRIT DMG. When enemies with Proof of Debt are attacked by an ally, Numby's actions are boosted. Numby exits the Windfall Bonanza! State after two attacks

Talent

Trotter Market!?

Summons Numby at the start of the battle. Numby has 80 SPD. When Numby takes action, it triggers follow-up attacks on a single enemy under Proof of Debt, dealing Fire damage equal to 75% of Topaz's Attack. When enemies under Proof of Debt are hit by ally follow-up attacks, Numby's action advances. This advancement doesn't work during Numby's turn. Numby disappears when Topaz is defeated

Technique

Explicit Subsidy

Summons Numby when Topaz enters the overworld. Numby automatically searches for Basic Treasures and Trotters in a specific range. Using this technique replenishes 60 Energy for Topaz after Numby's first attack in the next battle. If Topaz remains in the team and defeats overworld enemies after using this Technique, additional credits are obtained, capped at 10,000 per day. Defeating enemies in the Simulated Universe provides Cosmic Fragments and a chance to obtain a random Curio

Honkai Star Rail Topaz and Numby’s Eidolons

Honkai Star Rail Topaz & Numby’s Eidolons

Eidolons

Effect

E1

Future Market

When enemies under Proof of Debt receive follow-up attacks, they enter the Debtor state, increasing CRIT DMG from follow-up attacks by 25%. This effect can occur once per action and can stack up to 2 times. The debtor is removed when Proof of Debt is removed

E2

Bona Fide Acquisition

After Numby takes action and attacks, Topaz regains 5 Energy

E3

Seize the Big and Free the Small

Increases Skill level by 2, reaching a maximum level of 15, and raises Basic ATK level by 1, reaching a maximum level of 10

E4

Agile Operation

At the start of Numby's turn, Topaz's action is advanced forward by 20%

E5

Inflationary Demand

Raises Ultimate level by 2, reaching a maximum level of 15, and increases Talent level by 2, reaching a maximum level of 15

E6

Incentive Mechanism

Increases Numby's attack count during the Windfall Bonanza! state by 1 and boosts its Fire Resistance Penetration by 10% during attacks



Honkai Star Rail Topaz and Numby’s Best Light Cones

Worrisome, Blissful

★★★★★

Optimal 5-Star Choice

This Light Cone boosts the wearer's CRIT Rate by 18%-30% and amplifies follow-up damage by 30%-50%. It also inflicts a Tame status (2 stacks) on a target upon performing a follow-up attack.
When allies hit a target with the Tame status, each Tame stack increases the wearer's CRIT Rate by 12%. This Light Cone is exclusively available through the limited-time Light Cone Event Warp.

Worrisome, Blissful is a 5-star Light Cone of The Hunt path
Cruising in the Stellar Sea is a 5-star Light Cone of The Hunt path

Cruising in the Stellar Sea / Sleep Like the Dead

★★★★★

Alternative 5-Star Option

For more budget-friendly options, consider Cruising in the Stellar Sea from Herta’s Store or Sleep Like the Dead, obtainable for 600 Undying Starlight from the Starlight Exchange Shop.

Sleep Like the Dead is a 5-star Light Cone of The Hunt path

Swordplay / Return to Darkness

★★★★

Noteworthy 4-Star Selection

As for 4-star choices, Swordplay and Return to Darkness are acceptable alternatives, but to maximize Topaz's effectiveness, relying on the stats provided by a 5-star Light Cone is essential.

Swordplay is a 4-star Light Cone of The Hunt path.
Return to Darkness is a 4-star Light Cone of The Hunt Path


Honkai Star Rail Topaz and Numby’s Best Relics

Firesmith of Lava-Forging

2-piece bonus: Increases Fire DMG by 10%.

4-piece bonus: Boosts Skill DMG by 12%. After using the Ultimate, the wearer's Fire DMG increases by 12% for the next attack.

Firesmith of Lava-Forging is a Relic Set that can be obtained from trailblazing and challenging Cavern of Corrosion in 2-51 Star rarities.
Inert Salsotto is a Planar Ornament relic set

Inert Salsotto

For Ornament sets, the recommended choice for Topaz is Inert Salsotto. This set raises Topaz’s Crit Rate by 8%. When the overall CRIT Rate surpasses 50%, the damage output from the Ultimate and follow-up attacks is further amplified by 15%.

Honkai Star Rail Topaz and Numby’s Ascension Materials

Honkai Star Rail Topaz & Numby’s Ascension Materials

To ascend Topaz and Numby and unlock their full potential, you'll need the following materials:

  • Silvermane Badge*15
  • Silvermane Insignia*15
  • Silvermane Medal*15
  • Searing Steel Blade*65
  • Credits*308,000

Honkai Star Rail Topaz and Numby’s Best Team Composition

Topaz is a Hunt unit, but her damage output heavily relies on follow-up attacks. If you're planning to use Topaz, you'll need to get a bit creative with your team compositions. 

F2P Team (Free-to-Play)

Honkai Star Rail Topaz & Numby’s Best Team Composition

This free-to-play team features Asta providing support to Topaz with SPD and ATK buffs. March 7th's Follow-up attacks will advance Numby's turn order, and a healer, like Luocha, can keep the party alive.

Follow-Up Attack Team

Honkai Star Rail Topaz & Numby’s Best Team Composition

In this lineup, Topaz serves as a Sub-DPS, using her Skill to amplify enemy damage from Follow-up Attacks. Clara, relying heavily on Follow-up Attacks, pairs effectively with Topaz as the main DPS. Tingyun boosts Clara's ATK and provides energy for her Ultimate, while Lynx increases Clara's chances of being targeted, leading to more Follow-up Attacks and greater overall damage.



Topaz's versatility makes her a valuable addition to various team compositions. If you have her, make sure to gather the required items and boost her capabilities, allowing her to take her place on the frontlines alongside her trusty Warp Trotter companion.

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