Best Honkai: Star Rail Topaz & Numby Build: Skills And Team Comps

Topaz emerges as Honkai: Star Rail’s inaugural Fire Hunt character, bringing unique follow-up attack mechanics to the battlefield. As an Interastral Peace Corporation debt collector, she executes her responsibilities with both determination and compassion—qualities shaped by her upbringing on a planet facing extinction. Her constant companion Numby, a distinctive Space Trotter, delivers devastating follow-up assaults that form the foundation of their combat approach. Mastering how to amplify these attacks becomes essential for optimizing their performance. This guide covers everything required to construct your optimal Topaz setup, including premium Light Cones, superior Relics, and synergistic team formations.

Follow-up attacks constitute the primary damage source for Topaz and Numby. Their toolkit includes numerous abilities designed to reinforce these attacks while also boosting follow-up capabilities of allied characters.

The partnership between Topaz and Numby functions as an integrated combat unit, comparable to Jing Yuan’s relationship with the Lightning-Lord. Numby operates independently during its turn sequence, with all damage output classified as follow-up attacks.

Topaz and Numby can dominate with their follow-up attacks.

Here’s a comprehensive breakdown of Topaz and Numby’s combat capabilities, beginning at base Level 1 without Trace enhancements.

Topaz’s standard attack inflicts a percentage of her ATK against a single adversary. A key Trace ability transforms her basic attack into a follow-up variant, making this crucial for abilities that specifically target follow-up attacks.

Advanced Strategy: Understanding action economy is vital—Numby gains 50% action advance when allies strike Proof of Debt targets, enabling multiple attacks per rotation cycle.

Topaz deploys a Proof of Debt marker on a single target, amplifying the damage they receive from follow-up attacks by 25%. Numby simultaneously inflicts Fire damage equivalent to 75% of Topaz’s ATK as follow-up damage against this designated enemy.

The Difficulty Paying? ability affects only one opponent simultaneously, preventing area-of-effect application across multiple targets. When no enemies currently bear the active mark, Topaz randomly assigns Proof of Debt to a foe at the beginning of an ally’s turn.

Numby activates a specialized condition called “Windfall Bonanza!”, boosting its damage multiplier by 75% and Critical Damage by 12%. This enhanced state concludes after Numby executes two actions.

Topaz automatically summons Numby when combat initiates. During its turn, Numby delivers Fire damage matching 75% of Topaz’s ATK to any enemy marked with Proof of Debt. Numby’s action receives 50% Advanced Forward whenever an ally assaults the debuffed adversary. Crucially, all Numby’s offensive actions qualify as follow-up attacks.

An IPC debt collector must be ready to attack when necessary.

Common Mistake: Players often waste Topaz’s ultimate by using it when Numby already has action advance—optimal timing involves activating Windfall Bonanza before Numby’s turn for maximum damage stacking.

Advanced Technique: Coordinate ultimate usage with break effects—Fire break combined with Proof of Debt creates exceptional damage amplification against vulnerable targets.

Light Cone selection dramatically influences Topaz’s performance, with several options providing substantial benefits to her follow-up attack specialization. Understanding stat priorities and passive synergies ensures optimal performance across different content types.

Worrisome, Blissful is Topaz’s best Light Cone, but an expensive one.

Premium Choice: Worrisome, Blissful stands as Topaz’s signature Light Cone, offering exceptional follow-up attack enhancement. However, its acquisition requires significant resource investment.

F2P Alternatives: Several accessible Light Cones provide competitive performance, including options that boost Crit Rate, enhance follow-up damage, or provide energy regeneration for more frequent ultimate usage.

Stat Priority: Focus on Crit DMG and ATK% as primary offensive stats, with SPD becoming increasingly valuable for enabling more Numby actions per combat cycle.

Advanced Insight: Light Cones that provide action advance or additional follow-up attacks create exceptional synergy with Topaz’s kit, potentially enabling multiple Numby actions within single turn sequences.

Practical Tip: For players lacking the signature Light Cone, prioritize options that increase damage against debuffed enemies or provide consistent Crit Rate bonuses.

Relic configuration plays a pivotal role in maximizing Topaz’s damage potential. Proper stat distribution and set bonuses can increase overall performance by 30-40% compared to suboptimal builds.

Four-piece Firesmith is an option, but not the best one.

Set Bonus Strategy: While 4-piece Firesmith provides viable performance, specialized follow-up attack sets deliver superior damage output through enhanced multiplier scaling.

Main Stat Optimization: Prioritize Crit DMG on Body piece for maximum damage amplification, with SPD on Feet ensuring more frequent Numby actions. Fire DMG Sphere remains non-negotiable for elemental damage enhancement.

Substat Priority: ATK%, Crit DMG, Crit Rate, and SPD represent the optimal combination, with break effect providing situational value against specific enemy types.

Common Pitfall: Avoid over-investing in Crit Rate beyond 70-80%, as excess points provide diminishing returns compared to Crit DMG investment.

Advanced Optimization: For endgame content, aim for 70% Crit Rate, 150%+ Crit DMG, and 134+ SPD for optimal action economy.

Team construction around Topaz requires careful consideration of follow-up attack synergies, buff compatibility, and elemental coverage. Proper team building can double her damage output compared to suboptimal compositions.

Asta is one of Topaz’s best teammates, even if not in a debt-collecting scenario.

Core Synergy: Asta emerges as an exceptional partner for Topaz, providing ATK buffs, SPD enhancement, and Fire damage amplification through her abilities.

Rotation Patterns: Optimal sequencing involves applying Proof of Debt, followed by ally attacks to advance Numby, then ultimate activation during Windfall Bonanza for peak damage.

Advanced Compositions: For maximum performance, pair Topaz with characters who possess innate follow-up attacks or can trigger additional Numby actions through their kit mechanics.

Topaz might not be the top IPC debt collector, but she’s got some moves.

Strategic Insight: Teams should include at least one character who can consistently trigger Numby’s action advance while providing defensive utility or break effect application.

Common Team Building Error: Avoid pairing Topaz with characters who consume excessive skill points, as this disrupts her ability to maintain consistent Proof of Debt application.

For comprehensive team building strategies across different game modes, check out our Class Guide which covers advanced composition theory.

If you’re looking to expand your combat options, our Weapons Unlock guide provides detailed weapon synergy analysis.

No reproduction without permission：SeeYouSoon Game Club » Best Honkai: Star Rail Topaz & Numby Build: Skills And Team Comps Master Topaz's follow-up attack synergy with Numby through optimized builds, team compositions, and advanced combat strategies