Topaz & Numby 
The Hunt Topaz is the Leader of the Special Debts Picket Team and high-level manager of the Strategic Investment Department under the Interastral Peace Corporation. A member of the "Ten Stonehearts" at a young age, Topaz's foundational expertise is "debt retrieval." Her partner, the Warp Trotter "Numby," is also capable of keenly perceiving where "riches" are located, ensuring that jobs based in security, debt collection, and actuarial varieties are of no great challenge. At presently they are traveling the cosmos together, seeking all manner of liability disputes that might be affecting the stable progression of the IPC's businesses.
HP
ATK
DEF
SPEEDFire Followup Dps Build
Best Light Cone
Topaz & Numby Best Stats
Topaz & Numby Best Substats
Topaz & Numby Best Relics
Topaz & Numby Best Ornaments
Duran, Dynasty of Running Wolves
The Wondrous BananAmusement Park
Inert SalsottoTopaz & Numby Best Light Cones
Worrisome, Blissful
Cruising in the Stellar Sea
See You at the End
Swordplay
Sleep Like the Dead
Only Silence RemainsTopaz & Numby Best Teams
Topaz — F2P SPD/ATK Support
Free-to-play team. Asta supports Topaz with SPD and ATK buffs while March 7th (Imaginary) buffs SPD and CRIT DMG and adds damage with her enhanced basic attack. Natasha provides healing/cleansing.
Topaz + Feixiao (Sub-DPS Topaz)
Sub-DPS Topaz + Follow-up DPS. Topaz acts as a Sub-DPS using her Skill to increase enemy damage taken from Follow-up Attacks. Feixiao deals most damage through Follow-ups and pairs very well with Topaz. If using Aventurine, Robin is a good second support to increase Follow-up damage; otherwise Silver Wolf is recommended to implant debuffs.
Topaz + Dr. Ratio (Sub-DPS Topaz)
Sub-DPS Topaz paired with Dr. Ratio. Topaz increases damage from Follow-up Attacks allowing Dr. Ratio to excel since much of his damage comes from Follow-ups. Use Silver Wolf to implant debuffs; Luocha offers shielding/healing support.
Topaz + Himeko (Quantum Weak Enemy)
Use when the enemy is weak to Quantum but not Fire. Silver Wolf is important to implant Fire Weakness so Himeko can follow up more often; Topaz helps break weaknesses for Himeko's Follow-up attacks. Fu Xuan provides utility (mitigation/CRIT Rate).
Skills
Deals Fire DMG equal to 0.5% of Topaz's ATK to one designated enemy.
Inflicts one designated enemy target with a "Proof of Debt" state, increasing the Follow-up ATK DMG it receives by 0.25%. "Proof of Debt" only takes effect on the most recent target it is applied to. If there are no enemies inflicted with "Proof of Debt" on the field when an ally's turn starts or when an ally takes action, Topaz will inflict a random enemy with "Proof of Debt." Numby deals Fire DMG equal to 0.75% of Topaz's ATK to this target. Using this Skill to deal DMG is considered as launching a Follow-up ATK.
Unleashes an extra attack on the target. This effect is triggered automatically when requirements are met.
Numby enters the Windfall Bonanza! state and its DMG multiplier increases by 0.75% and CRIT DMG increases by 0.13%. Also, when enemies with Proof of Debt are hit by an ally's Basic ATK, Skill, or Ultimate, Numby's action is Advanced Forward by 0.5%. Numby exits the Windfall Bonanza! state after using 2 attacks.
Summons Numby at the start of battle. Numby has 80 SPD by default. When taking action, Numby launches Follow-up ATKs on one enemy target afflicted with "Proof of Debt," dealing Fire DMG equal to 0.75% of Topaz's ATK. When enemies afflicted with "Proof of Debt" receive an ally's Follow-up ATKs, Numby's action is Advanced Forward by 0.5%. The action Advance Forward effect cannot be triggered during Numby's own turn. When Topaz is downed, Numby disappears.
Unleashes an extra attack on the target. This effect is triggered automatically when requirements are met.
An ally will be incapacitated once their HP is reduced to 0.
Summons Numby when Topaz enters the overworld. Numby will automatically search for Basic Treasures and Trotters within a set radius. Using her Technique will regenerate 60 Energy for Topaz after Numby's first attack in the next battle. If Topaz is still in the team after using her Technique and defeating overworld enemies, a small bonus amount of credits will be added to the earned credits. A maximum of 10000 bonus credits can be received per calendar day. After using her Technique and defeating enemies in Simulated Universe or Divergent Universe, additionally receive a small amount of Cosmic Fragments with a small chance to obtain 1 random Curio.
Traces
Eidolon
When enemies afflicted with "Proof of Debt" receive Follow-up ATKs, they will enter the "Debtor" state. This can take effect only once within a single attack.
The "Debtor" state increases the CRIT DMG of Follow-up ATKs inflicted on the target enemies by
Unleashes an extra attack on the target. This effect is triggered automatically when requirements are met.
After Numby takes action and launches an attack, Topaz regenerates
Skill Lv. +2, up to a maximum of Lv.
After Numby's turn begins, Topaz's action advances by
Reduces the target's waiting interval before the next action.
Ultimate Lv. +2, up to a maximum of Lv.
Numby's attack count during the "Windfall Bonanza!" state increases by
When dealing DMG, ignore a part of the enemy target's resistance to the corresponding damage type.