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Thoma — Pyro Polearm character | Genshin Impact

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Thoma

Build guide · Genshin Impact

4-star
PyroPolearmShielder

Protector From Afar

The best Thoma build in Genshin Impact (Version 7.0) is Crimson Moon's Semblance with Crimson Witch of Flames, HP% sands, HP% goblet, HP% circlet. Updated August 22, 2026

How this build was derivedThoma’s kit multiplies HP, read from the scaling rows on the Elemental Skill and Burst rather than from the ability prose. Weapons and artifact sets below are ranked on whether their stat and their passive text act on that stat. This is a reading of the game’s own numbers, not a community tier consensus — a set that wins a niche team composition will not show up here.

Weapons

Also works: Vortex Vanquisher, Engulfing Lightning, Dialogues of the Desert Sages, Sacrificer's Staff

Artifacts

Main stats

Sands
HP%
Goblet
HP%
Circlet
HP%

Substat priority

  1. 1Energy RechargeBest
  2. 2HP%
  3. 3CRIT Rate
  4. 4CRIT DMG

Talent priority

  1. #1

    Elemental Burst

    Max first

  2. #2

    Elemental Skill

    Then

  3. #3

    Normal Attack

    Next

Teams

No composition on the site currently uses Thoma. The best teams page carries the ones that are written up.

Genshin Impact 4★ Pyro Polearm Shielder

Thoma build summary

Updated August 22, 2026

Crimson Moon's Semblance is the closest fit on the game's own numbers: Thoma's kit multiplies HP, and a weapon is ranked here on whether its ascension stat and its passive act on that stat. Staff of Homa, Rightful Reward and Vortex Vanquisher come next. No playtested ranking has been imported for Thoma, so this is arithmetic over the kit data rather than a damage measurement.

Run Crimson Witch of Flames on Thoma, with Vourukasha's Glow and Tenacity of the Millelith behind it. Main stats are HP% sands, HP% goblet, HP% circlet. Roll substats in the order Energy Recharge > HP% > CRIT Rate > CRIT DMG.

Talent priority is Elemental Burst > Elemental Skill > Normal Attack. The Elemental Burst costs 80 energy, which is what an Energy Recharge target has to clear.

Role
Shielder
Main stats
HP% sands, HP% goblet, HP% circlet
Substats priority
Energy Recharge > HP% > CRIT Rate > CRIT DMG
Talent priority
Elemental Burst > Elemental Skill > Normal Attack
Burst energy cost
80 energy
Key ascension material
168× Fluorescent Fungus
Last updated
August 22, 2026

Combat talents

Thoma Swiftshatter Spear — normal attack icon | Genshin Impact
Normal

Swiftshatter Spear

Normal Attack Performs up to 4 consecutive spear strikes.

Charged Attack Consumes a certain amount of Stamina to lunge forward, dealing damage to opponents along the way.

Plunging Attack Plunges from mid-air to strike the ground below, damaging opponents along the path and dealing AoE DMG upon impact.

Talent level

10 is the cap from materials; C3 and C5 add +3.

1-Hit DMG
87.8%
2-Hit DMG
86.2%
3-Hit DMG
53.0%×2
4-Hit DMG
133.1%
Charged Attack DMG
222.9%
Charged Attack Stamina Cost
25.0
Plunge DMG
126.4%
Low/High Plunge DMG
252.7%/315.6%
All 15 levels
Attribute123456789101112131415
1-Hit DMG44.4%48.0%51.6%56.8%60.4%64.5%70.2%75.9%81.6%87.8%93.9%100.1%106.3%112.5%118.7%
2-Hit DMG43.6%47.2%50.7%55.8%59.4%63.4%69.0%74.6%80.2%86.2%92.3%98.4%104.5%110.6%116.7%
3-Hit DMG26.8%×229.0%×231.1%×234.3%×236.4%×238.9%×242.4%×245.8%×249.2%×253.0%×256.7%×260.4%×264.2%×267.9%×271.6%×2
4-Hit DMG67.4%72.8%78.3%86.2%91.6%97.9%106.5%115.1%123.7%133.1%142.5%151.9%161.3%170.7%180.1%
Charged Attack DMG112.7%121.9%131.1%144.2%153.4%163.9%178.3%192.7%207.1%222.9%238.6%254.3%270.1%285.8%301.5%
Charged Attack Stamina Cost25.025.025.025.025.025.025.025.025.025.025.025.025.025.025.0
Plunge DMG63.9%69.1%74.3%81.8%87.0%92.9%101.1%109.3%117.5%126.4%135.3%144.2%153.1%162.1%171.0%
Low/High Plunge DMG127.8%/159.7%138.2%/172.7%148.6%/185.7%163.5%/204.2%173.9%/217.2%185.8%/232.1%202.2%/252.5%218.5%/272.9%234.9%/293.4%252.7%/315.6%270.5%/337.9%288.4%/360.2%306.2%/382.5%324.1%/404.8%341.9%/427.0%
Thoma Blazing Blessing — elemental skill icon | Genshin Impact
Skill

Blazing Blessing

Thoma vaults forward with his polearm and delivers a flame-filled flying kick that deals AoE Pyro DMG, while also summoning a defensive Blazing Barrier. At the moment of casting, Thoma's Elemental Skill applies Pyro to himself. The DMG Absorption of the Blazing Barrier scales off Thoma's Max HP. The Blazing Barrier has the following traits: · Absorbs Pyro DMG 250% more effectively. · When a new Blazing Barrier is obtained, the remaining DMG Absorption of an existing Blazing Barrier will stack and its duration will be refreshed.

The maximum DMG Absorption of the Blazing Barrier will not exceed a certain percentage of Thoma's Max HP.

As a guest from afar, only the most burning passion would allow one to master the pure and precise spear arts of Inazuma. Thoma's mastery, indeed, is not limited to being the "swiftest-studying student" or "a master of the spear," but he has imbued his will to protect others and fend off foes into his art as well.

Talent level

10 is the cap from materials; C3 and C5 add +3.

Skill DMG
263.5%
Shield DMG Absorption
13.0% Max HP+1525
Shield Duration
8.0s
Max Shield DMG Absorption
35.3% Max HP+4153
CD
15.0s
All 15 levels
Attribute123456789101112131415
Skill DMG146.4%157.4%168.4%183.0%194.0%205.0%219.6%234.2%248.9%263.5%278.2%292.8%311.1%329.4%347.7%
Shield DMG Absorption7.2% Max HP+6937.7% Max HP+7638.3% Max HP+8389.0% Max HP+9199.5% Max HP+100510.1% Max HP+109810.8% Max HP+119611.5% Max HP+130012.2% Max HP+141013.0% Max HP+152513.7% Max HP+164714.4% Max HP+177415.3% Max HP+190716.2% Max HP+204617.1% Max HP+2190
Shield Duration8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s
Max Shield DMG Absorption19.6% Max HP+188721.1% Max HP+207622.5% Max HP+228124.5% Max HP+250126.0% Max HP+273727.4% Max HP+298929.4% Max HP+325631.4% Max HP+353933.3% Max HP+383835.3% Max HP+415337.2% Max HP+448339.2% Max HP+482941.6% Max HP+519144.1% Max HP+556846.6% Max HP+5962
CD15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s
Thoma Crimson Ooyoroi — elemental burst icon | Genshin Impact
Burst

Crimson Ooyoroi

Thoma spins his polearm, slicing at his foes with roaring flames that deal AoE Pyro DMG and weave themselves into a Scorching Ooyoroi.

Scorching Ooyoroi While Scorching Ooyoroi is in effect, the active character's Normal Attacks will trigger Fiery Collapse, dealing AoE Pyro DMG and summoning a Blazing Barrier. Fiery Collapse can be triggered once every 1s.

Except for the amount of DMG they can absorb, the Blazing Barriers created in this way are identical to those created by Thoma's Elemental Skill, Blazing Blessing: · Absorbs Pyro DMG 250% more effectively. · When a new Blazing Barrier is obtained, the remaining DMG Absorption of an existing Blazing Barrier will stack and its duration will be refreshed.

The maximum DMG Absorption of the Blazing Barrier will not exceed a certain percentage of Thoma's Max HP.

If Thoma falls, the effects of Scorching Ooyoroi will be cleared.

"I will not forget my initial promise. Let this burning flame protect those I cherish, and may it never be extinguished."

Talent level

10 is the cap from materials; C3 and C5 add +3.

Skill DMG
158.4%
Fiery Collapse DMG
104.4%
Shield DMG Absorption
2.1% Max HP+242
Shield Duration
8.0s
Scorching Ooyoroi Duration
15.0s
CD
20.0s
Energy Cost
80
All 15 levels
Attribute123456789101112131415
Skill DMG88.0%94.6%101.2%110.0%116.6%123.2%132.0%140.8%149.6%158.4%167.2%176.0%187.0%198.0%209.0%
Fiery Collapse DMG58.0%62.4%66.7%72.5%76.8%81.2%87.0%92.8%98.6%104.4%110.2%116.0%123.3%130.5%137.8%
Shield DMG Absorption1.1% Max HP+1101.2% Max HP+1211.3% Max HP+1331.4% Max HP+1461.5% Max HP+1601.6% Max HP+1741.7% Max HP+1901.8% Max HP+2061.9% Max HP+2242.1% Max HP+2422.2% Max HP+2612.3% Max HP+2822.4% Max HP+3032.6% Max HP+3252.7% Max HP+348
Shield Duration8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s8.0s
Scorching Ooyoroi Duration15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s15.0s
CD20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s20.0s
Energy Cost808080808080808080808080808080

Passives

Thoma Imbricated Armor — passive icon | Genshin Impact
Passive

Imbricated Armor

When your current active character obtains or refreshes a Blazing Barrier, this character's Shield Strength will increase by 5% for 6s. This effect can be triggered once every 0.3s seconds. Max 5 stacks.

Thoma Flaming Assault — passive icon | Genshin Impact
Passive

Flaming Assault

DMG dealt by Crimson Ooyoroi's Fiery Collapse is increased by 2.2% of Thoma's Max HP.

Thoma Snap and Swing — passive icon | Genshin Impact
Passive

Snap and Swing

When you fish successfully in Inazuma, Thoma's help grants a 20% chance of scoring a double catch.

Full bill

Level 90 and every talent to 10

5,377,500

Mora 17 material lines

Ascension to 90

420,000

Mora 9 materials · 6 steps

All 3 talents to 10

4,957,500

Mora 3× the single-talent bill

Ascension

  1. Lv 40
    Agnidus Agate Sliver — ascension material | Genshin ImpactAgnidus Agate Sliver ×1
    Fluorescent Fungus — ascension material | Genshin ImpactFluorescent Fungus ×3
    Treasure Hoarder Insignia — ascension material | Genshin ImpactTreasure Hoarder Insignia ×3

    20,000Mora

  2. Lv 50
    Smoldering Pearl — ascension material | Genshin ImpactSmoldering Pearl ×2
    Agnidus Agate Fragment — ascension material | Genshin ImpactAgnidus Agate Fragment ×3
    Fluorescent Fungus — ascension material | Genshin ImpactFluorescent Fungus ×10
    Treasure Hoarder Insignia — ascension material | Genshin ImpactTreasure Hoarder Insignia ×15

    40,000Mora

  3. Lv 60
    Smoldering Pearl — ascension material | Genshin ImpactSmoldering Pearl ×4
    Agnidus Agate Fragment — ascension material | Genshin ImpactAgnidus Agate Fragment ×6
    Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×12
    Fluorescent Fungus — ascension material | Genshin ImpactFluorescent Fungus ×20

    60,000Mora

  4. Lv 70
    Agnidus Agate Chunk — ascension material | Genshin ImpactAgnidus Agate Chunk ×3
    Smoldering Pearl — ascension material | Genshin ImpactSmoldering Pearl ×8
    Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×18
    Fluorescent Fungus — ascension material | Genshin ImpactFluorescent Fungus ×30

    80,000Mora

  5. Lv 80
    Agnidus Agate Chunk — ascension material | Genshin ImpactAgnidus Agate Chunk ×6
    Smoldering Pearl — ascension material | Genshin ImpactSmoldering Pearl ×12
    Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×12
    Fluorescent Fungus — ascension material | Genshin ImpactFluorescent Fungus ×45

    100,000Mora

  6. Lv 90
    Agnidus Agate Gemstone — ascension material | Genshin ImpactAgnidus Agate Gemstone ×6
    Smoldering Pearl — ascension material | Genshin ImpactSmoldering Pearl ×20
    Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×24
    Fluorescent Fungus — ascension material | Genshin ImpactFluorescent Fungus ×60

    120,000Mora

Total to level 90

420,000 Mora

Agnidus Agate Gemstone — ascension material | Genshin ImpactAgnidus Agate Gemstone ×6
Agnidus Agate Chunk — ascension material | Genshin ImpactAgnidus Agate Chunk ×9
Smoldering Pearl — ascension material | Genshin ImpactSmoldering Pearl ×46
Agnidus Agate Fragment — ascension material | Genshin ImpactAgnidus Agate Fragment ×9
Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×36
Agnidus Agate Sliver — ascension material | Genshin ImpactAgnidus Agate Sliver ×1
Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×30
Fluorescent Fungus — ascension material | Genshin ImpactFluorescent Fungus ×168
Treasure Hoarder Insignia — ascension material | Genshin ImpactTreasure Hoarder Insignia ×18

Talent materials

  1. → 2
    Teachings of Transience — ascension material | Genshin ImpactTeachings of Transience ×3
    Treasure Hoarder Insignia — ascension material | Genshin ImpactTreasure Hoarder Insignia ×6

    12,500Mora

  2. → 3
    Guide to Transience — ascension material | Genshin ImpactGuide to Transience ×2
    Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×3

    17,500Mora

  3. → 4
    Guide to Transience — ascension material | Genshin ImpactGuide to Transience ×4
    Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×4

    25,000Mora

  4. → 5
    Guide to Transience — ascension material | Genshin ImpactGuide to Transience ×6
    Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×6

    30,000Mora

  5. → 6
    Guide to Transience — ascension material | Genshin ImpactGuide to Transience ×9
    Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×9

    37,500Mora

  6. → 7
    Hellfire Butterfly — ascension material | Genshin ImpactHellfire Butterfly ×1
    Philosophies of Transience — ascension material | Genshin ImpactPhilosophies of Transience ×4
    Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×4

    120,000Mora

  7. → 8
    Hellfire Butterfly — ascension material | Genshin ImpactHellfire Butterfly ×1
    Philosophies of Transience — ascension material | Genshin ImpactPhilosophies of Transience ×6
    Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×6

    260,000Mora

  8. → 9
    Hellfire Butterfly — ascension material | Genshin ImpactHellfire Butterfly ×2
    Philosophies of Transience — ascension material | Genshin ImpactPhilosophies of Transience ×12
    Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×9

    450,000Mora

  9. → 10
    Crown of Insight — ascension material | Genshin ImpactCrown of Insight ×1
    Hellfire Butterfly — ascension material | Genshin ImpactHellfire Butterfly ×2
    Philosophies of Transience — ascension material | Genshin ImpactPhilosophies of Transience ×16
    Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×12

    700,000Mora

One talent to 10

1,652,500 Mora

Crown of Insight — ascension material | Genshin ImpactCrown of Insight ×1
Hellfire Butterfly — ascension material | Genshin ImpactHellfire Butterfly ×6
Philosophies of Transience — ascension material | Genshin ImpactPhilosophies of Transience ×38
Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×31
Guide to Transience — ascension material | Genshin ImpactGuide to Transience ×21
Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×22
Teachings of Transience — ascension material | Genshin ImpactTeachings of Transience ×3
Treasure Hoarder Insignia — ascension material | Genshin ImpactTreasure Hoarder Insignia ×6

All 3 talents to 10

4,957,500 Mora

Crown of Insight — ascension material | Genshin ImpactCrown of Insight ×3
Hellfire Butterfly — ascension material | Genshin ImpactHellfire Butterfly ×18
Philosophies of Transience — ascension material | Genshin ImpactPhilosophies of Transience ×114
Golden Raven Insignia — ascension material | Genshin ImpactGolden Raven Insignia ×93
Guide to Transience — ascension material | Genshin ImpactGuide to Transience ×63
Silver Raven Insignia — ascension material | Genshin ImpactSilver Raven Insignia ×66
Teachings of Transience — ascension material | Genshin ImpactTeachings of Transience ×9
Treasure Hoarder Insignia — ascension material | Genshin ImpactTreasure Hoarder Insignia ×18

Thoma’s constellation — Rubeum Scutum

  1. Thoma C1 A Comrade's Duty — constellation | Genshin ImpactC1

    A Comrade's Duty

    When a character protected by Thoma's own Blazing Barrier (Thoma excluded) is attacked, Thoma's own Blazing Blessing CD is decreased by 3s, while his own Crimson Ooyoroi's CD is decreased by 3s. This effect can be triggered once every 20s.

  2. Thoma C2 A Subordinate's Skills — constellation | Genshin ImpactC2

    A Subordinate's Skills

    Crimson Ooyoroi's duration is increased by 3s.

  3. Thoma C3 Fortified Resolve — constellation | Genshin ImpactC3

    Fortified Resolve

    Increases the Level of Blazing Blessing by 3. Maximum upgrade level is 15.

  4. Thoma C4 Long-Term Planning — constellation | Genshin ImpactC4

    Long-Term Planning

    After using Crimson Ooyoroi, 15 Energy will be restored to Thoma.

  5. Thoma C5 Raging Wildfire — constellation | Genshin ImpactC5

    Raging Wildfire

    Increases the Level of Crimson Ooyoroi by 3. Maximum upgrade level is 15.

  6. Thoma C6 Burning Heart — constellation | Genshin ImpactC6

    Burning Heart

    When a Blazing Barrier is obtained or refreshed, the DMG dealt by all party members' Normal, Charged, and Plunging Attacks is increased by 15% for 6s.

Thoma’s outfits

  • Thoma — Warrior of Flame outfit | Genshin Impact
    Default

    Warrior of Flame

    Thoma's outfit. He cropped the pieces of this light suit of armor till only the thigh and arm guards were left, allowing him to comfortably attend to all matters in and out of combat.

Names, descriptions and art from the game data. Pick an outfit on the stage to see it full size.

Thoma FAQ

What element is Thoma?
Thoma is a 4-star Pyro character from Inazuma who uses a polearm, released in version 2.2.
What stat does Thoma scale on?
Thoma's abilities multiply HP. That is read from the scaling rows on the Elemental Skill and Burst, not from the ability description, so it reflects what the game actually multiplies rather than what the text mentions.
What is the best weapon for Thoma?
Crimson Moon's Semblance is the closest fit on the data: it is a 5-star polearm with CRIT Rate as its ascension stat, and its passive acts on HP. Rightful Reward is the best 4-star alternative.
Which artifact set should Thoma use?
Crimson Witch of Flames. Its 2-piece bonus is: Pyro DMG Bonus +15% Its 4-piece bonus is: Increases Overloaded, Burning, and Burgeon DMG by 40%. Increases Vaporize and Melt DMG by 15%. Using Elemental Skill increases the 2-Piece Set Bonus by 50% of its starting value for 10s. Max 3 stacks.
How much does it cost to level Thoma's talents?
Taking one talent from level 1 to 10 costs 1,652,500 Mora and 38× Philosophies of Transience among other materials. The Materials tab lists every item per level.
What does Thoma C1 do?
A Comrade's Duty: When a character protected by Thoma's own Blazing Barrier (Thoma excluded) is attacked, Thoma's own Blazing Blessing CD is decreased by 3s, while his own Crimson Ooyoroi's CD is decreased by 3s. This effect can be triggered once every 20s.
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