Home » esports » Genshin Impact Thoma Build Guide – Best Weapons and Artifacts

We have the best build guide for Thoma, the newly released 4-star Pyro Polearm use in Genshin Impact

We first met Thoma when we entered the Inazuma Islands when the Vision Hunt decree was still in place. He is the Housekeeper for the Kamisato Estate and a friend of Kamisato Ayaka. He is well known for being a ‘fixer’ in Inazuma. In our Thoma Best Build Guide, you can find the best weapons and artifacts for him.

Thoma is a fun character that can be used as support in various different teams. His constellation is called Rubeum Scutum which means “Red Shield.” His Elemental Skill deals AoE Pyro DMG to enemies while providing a shield. He also applies Pyro to himself to cleanse any detrimental effects. He is a very niche character and can be very useful in certain situations. Here is our Thoma Best Build Guide.

Thoma Best Build Guide

Strengths

  • Can apply off-field Pyro reactions with Elemental Burst. 
  • Provide shields with Elemental Skill and Burst. 
  • C6 provides a boost to party’s Normal, Charged, and Plunge Attacks.

Weaknesses

  • High Energy Cost for his Elemental Burst. 
  • Long Elemental Skill CD.
  • Lackluster DMG scaling.
genshin impact thoma abilities
Thoma Abilities

Thoma Abilities

Swiftshatter Spear (Normal Attack)

  • Normal Attack – Performs up to four 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.

Blazing Blessing (Elemental Skill)

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 Absoprtion of the Blazing Barrier will not exceed a certain percentage of Thoma’s Max HP.

Crimson Ooyoroi (Elemental Burst)

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 Absoprtion 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.

Thoma best Weapons build
Staff of Homa

Thoma Best Weapons Build

1. Staff of Homa

Base Attack: 46

Bonus Effect: CRIT DMG 14.4% 

Skill Effect – HP increased by 20%. Additionally, provides an ATK Bonus based on 0.8% of the wielder’s Max HP. When the wielder’s HP is less than 50%, this ATK Bonus is increased by an additional 1% of Max HP.

2. Wavebreaker’s Fin 

Base Attack: 45

Bonus Effect: ATK 3.0% 

Skill Effect – For every point of the entire party’s combined maximum Energy capacity, the Elemental Burst DMG of the character equipping this weapon is increased by 0.12%. A maximum of 40% increased Elemental Burst DMG can be achieved this way.

3. The Catch

Base Attack: 42

Bonus Effect: Energy Recharge 10.0% 

Skill Effect – Increases Elemental Burst DMG by 16% and Elemental Burst CRIT Rate by 6%

thoma best artifact set build
Emblem of Severed Fate Set

Thoma Best Artifact Build

1. Emblem of Severed Fate

  • Energy Recharge +20%.
  • Increases Elemental Burst DMG by 25% of Energy Recharge. A maximum of 75% bonus DMG can be obtained in this way.

2. Tenacity of the Milelith

  • HP +20%
  • When an Elemental Skill hits an opponent, the ATK of all nearby party members is increased by 20% and their Shield Strength is increased by 30% for 3s. This effect can be triggered once every 0.5s. This effect can still be triggered even when the character who is using this artifact set is not on the field.

3. Noblesse Oblige

  • Elemental Burst DMG +20%.
  • Using an Elemental Burst increases all party members’ ATK by 20% for 12s. This effect cannot stack.
Thoma in Genshin Impact

Thoma Passive Talents

Snap and Swing (Unlocked Automatically)

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

Imbricated Armor (Unlocked after Ascension 1)

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 0.3 seconds. Max 5 stacks.

Flaming Assault (Unlocked after Ascension 4)

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

thoma constellation genshin impact
Rubeum Scutum – Thoma Constellation

Thoma Constellations

1. A Comrade’s Duty (Constellation 1)

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. A Subordinate’s Skills (Constellation 2)

Crimson Ooyoroi’s duration is increased by 3s.

3. Fortified Resolve (Constellation 3)

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

4. Long-Term Planning (Constellation 4)

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

5. Raging Wildfire (Constellation 5)

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

6. Burning Heart (Constellation 6)

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 gets extremely powerful once you have his fourth and sixth constellations unlocked. The combination of Thoma and Hu Tao is extremely deadly. Hu Tao will take less damage with Thoma’s shields. The Pyro resonance will also boost the attack. Raiden Shogun will increase Thoma’s  Energy Recharge and easily trigger overload reactions. He works great with any other Hydro and Cryo characters to trigger elemental reactions. This was our Thoma Best Build Guide. You can get him right now on the Hu Tao Banner.

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