Thoma Guide and Best Builds

Thoma Guide and Best Builds for Genshin Impact

Thoma is a 4-star Pyro Polearm user in Genshin Impact that primarily focuses as shielder but can also contribute great damage to Burgeon teams. This guide will focus on Thoma's best builds, weapons, artifacts, teambuilding and more!

Last updated on Mar 13, 2024 at 12:09 by Shikhu
B Rating
Pyro Element
Polearm Weapon
Christian Banas EN Voice Actor
Morita Masakazu JP Voice Actor

Strengths and Weaknesses

V Strengths
  • +Powerful shield from both his Elemental Skill and Elemental Burst.
  • +Consistent Off-Field Pyro application making him great for Burgeon reactions.
X Weaknesses
  • -Extremely high Energy requirements for his Elemental Burst.
  • -Elemental Skill has a long cooldown.
  • -Low damage outside of the Pyro he brings for Burgeon reactions.

Burgeon Trigger Thoma

Thoma's main role since the release of Dendro is as a support for Burgeon-related reactions. His slow Pyro application reduces the chances of Burning occurring with his shields reducing any damage as a result of the reactions.

BiS Weapon Kitain Cross Spear
Alternative Weapons
  1. Favonius Lance
  2. Dragon's Bane
  3. Moonpiercer
Best Artifacts
  1. Flower of Paradise Lost
  2. Gilded Dreams
Main Stats
  • Sand Stats: Energy Recharge / Elemental Mastery
  • Goblet Stats: Elemental Mastery
  • Circlet Stats: Elemental Mastery
Substat Priority
    1. Energy Recharge
    2. Elemental Mastery
    3. HP %
    4. HP
Talent Priority
  1. Elemental Skill
  2. Elemental Burst
  3. Normal Attack

Thoma's best weapons focus on improving his Energy Recharge with Kitain Cross Spear also increasing his Elemental Mastery which helps with Burgeon reactions. Ideally you want Kitain Cross Spear to be at higher Refinements to further help with Energy generation.

Favonius Lance is also a great option for Thoma and can often be better at higher refinements. That being said, it does require you to also build CRIT Rate on top of other stats so that you can proc the weapons effects. This can ultimately make him harder to build or require additional investment.

Flower of Paradise Lost is Thoma's best artifact set with this build. Not only does it increase Elemental Mastery, it also increases Burgeon DMG. Energy Recharge advice have been listed below the second build.

Normal Attack: Swiftshatter Spear is not an important talent to level, you will very rarely use it.


Shield Support Thoma

In non-Burgeon groups, Thoma can be solely played as a shielder used to support your team. This focuses on HP instead of Elemental Mastery with entirely different artifact sets.

BiS Weapon Favonius Lance
Alternative Weapons
  1. Dialogues of the Desert Sages
  2. Engulfing Lightning
  3. "The Catch"
  4. Kitain Cross Spear
Best Artifacts
  1. Noblesse Oblige
Main Stats
  • Sand Stats: Energy Recharge / HP %
  • Goblet Stats: HP %
  • Circlet Stats: HP %
Substat Priority
    1. Energy Recharge
    2. HP %
    3. CRIT Rate
    4. HP
Talent Priority
  1. Elemental Skill
  2. Elemental Burst
  3. Normal Attack

Thoma's best weapons are Favonius Lance, Dialogues of the Desert Sages and Engulfing Lightning. Desert Sages provides better shielding due to its HP % stat however Thoma is unable to benefit from the Energy passive. Favonius is regardless, still better due to also providing additional utility for the rest of the team. Both Favonius and Engulfing are great at lowering your Energy requirements.

Noblesse Oblige is the best artifact set to use on Thoma when played as a support. This allows him to further support the team by providing a great ATK buff.

Normal Attack: Swiftshatter Spear is not an important talent to level, you will very rarely use it.


Energy Recharge Breakpoints

Thoma has various Energy Recharge breakpoints depending on his weapon choices and what Constellations Thoma has. Generally you want around 220 - 230% with Long-Term Planning helping to reduce requirements by around 25%.

Favonius Lance lowers your requirements by around 20% or alternatively Kitain Cross Spear lowers requirements by roughly 5% per Refinement.


Combos and How to Play Thoma

Both Blazing Blessing and Crimson Ooyoroi create shields when used which scale based on his max HP. They also have a unique effect of allowing Thoma's shields to stack on each other further increasing your shield strength instead of replacing them like other shield characters. With the effects of Imbricated Armor, the first 5 stacked shields gain increased shield strength.

Thoma is great for Burgeon! With his Elemental Burst Crimson Ooyoroi, you can slowly apply Pyro DMG when your active character uses a Normal Attack. This provides Thoma with the perfect amount of Pyro application to create Burgeon without Burning too frequently.


Thoma is Great for Fishing!

Thomas passive Snap and Swing provides a 20% chance of doubling your fishing yield in Inazuma. Thoma does not need to be in the party for this to take effect, simply having Thoma makes it easier to catch Inazuman fish.


Thoma's Best Team Comps

Listed below are several team comps for Thoma. The first being based around Burgeon reactions and the rest he primarily focuses on shielding.


Thoma Burgeon Team

Main DPS Sub DPS Sub DPS Support
Kamisato Ayato Thoma
Alhaitham Xingqiu Nahida Thoma

Burgeon teams require 1 Hydro, 1 Dendro and 1 Pyro (in this case Thoma). The final position can be filled by various characters with a second Dendro character such as Yaoyao and Kirara being great choices. Fischl is often one of the best non-Dendro options due to their powerful off-field Electro DMG.

The first example uses Kamisato Ayato as a Hydro DPS but various Dendro characters can be used on-field instead such as Alhaitham and even Baizhu.


Hu Tao Thoma Teams

Main DPS Sub DPS Sub DPS Support
Hu Tao Thoma

Thoma can be an excellent support for Hu Tao providing not only shielding but also Pyro Resonance to increase damage. Either Xingqiu or Yelan work best here to facilitate Vaporize reactions while Anemo characters such as Sucrose and Kaedehara Kazuha provide Swirling and the effects of Viridescent Venerer.


Wanderer Hypercarry Teams

Main DPS Support Support Support
Wanderer Faruzan Thoma Bennett

Thoma can be a great support for Wanderer by ensuring Wanderer does not get knocked out of the air when trying to deal damage and also by offering Pyro Resonance due to being paired with Bennett.


Thoma's Ascensions, Talents and Constellations

Thoma's Ascensions Thoma's Talents Thoma's Constellations

Thoma's Ascension Passives and Materials

Unlock Ascension Passive Explanation
With Character Snap and Swing Has a 20% chance to give a second fish. Does not need to be in the party for this to activate.
1st Ascension Imbricated Armor Increases Shield Strength for up to 5 shield stacks from both Elemental Skill and Elemental Burst.
4th Ascension Flaming Assault Small damage buff to off-field attacks.

Thoma requires a range of materials to ascend to the 6th ascension. Starting from the second ascension they gain additional ATK as they gain levels, giving a total of 24% Bonus ATK at the final ascension. The total cost to upgrade all ascensions is:

Source Quantity
Mora 420,000 Mora
Boss Material 46x Smoldering Pearl
Ascension Material
Local Specialty 168x Fluorescent Fungus
Enhancement Material
  • 18x Treasure Hoarder Insignia
  • 30x Silver Raven Insignia
  • 36x Golden Raven Insignia

Thoma's Talents

Listed below is each talent and a simplified explanation of how they work.

Type Talent Name Brief Explanation
Normal Normal Attack: Swiftshatter Spear Normal Attacks with nothing special to note. Thoma will rarely use their Normal Attacks.
Elemental Skill Blazing Blessing
  • Deals Pyro DMG while applying a shield that lasts for 8 seconds.
  • Because it applies Pyro to Thoma, it can be used to cleanse other effects.
  • Shields stack on to shields created by Crimson Ooyoroi.
Elemental Burst Crimson Ooyoroi Deals Pyro DMG from the front of your active character when Normal Attacks occur. This also generates a Blazing Barrier shield and is how you mainly stack shields.

To upgrade a single talent to level 10, it costs:

Source Quantity
Mora 1,625,500 Mora
Special Material 1x Crown of Insight
Boss Material 6x Hellfire Butterfly
Domain Material
  • 3x Teachings of Transience
  • 21x Guide to Transience
  • 38x Philosophies of Transience
Enhancement Material
  • 6x Treasure Hoarder Insignia
  • 22x Silver Raven Insignia
  • 31x Golden Raven Insignia

Thoma's Constellations

Thoma's 2 most important Constellations are Long-Term Planning (C4) and Burning Heart (C6). With his C4 lowering Energy requirements being incredibly useful and his C6 increasing the parties DPS.

# Name Explanation
C1 A Comrade's Duty Lowers the cooldown on Blazing Blessing and Crimson Ooyoroi by 3s if attacked. This lowers the Skill to 12s and the Burst to 17s.
C2 A Subordinate's Skills Simply increases the duration of Crimson Ooyoroi by 3s.
C3 Fortified Resolve
  • Increases the Level of Blazing Blessing by 3.
  • Maximum upgrade level is 15.
C4 Long-Term Planning Restores 15 Energy when Crimson Ooyoroi is used.
C5 Raging Wildfire
  • Increases the Level of Crimson Ooyoroi by 3.
  • Maximum upgrade level is 15.
C6 Burning Heart When you gain or refresh a shield, increase the DMG of party members attacks by 15%.


  • 13 Mar. 2024: Updated Shieldbot build with new lance with 4.5.
  • 31 Jan. 2024: Guide reviewed for Patch 4.4.
  • 04 Dec. 2023: Guide added.
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