Thoma
Who is Thoma?
Thoma is a 4★ Pyro Polearm character from Inazuma who functions in two distinct roles: a Burgeon reaction trigger (EM-stacking on-field driver in Dendro teams) or a Pyro shielder/support (HP-stacking off-field). As a Burgeon trigger he levels to 90, stacks Elemental Mastery, and uses Nahida + Hydro to rapidly detonate Dendro Cores via his Shield's Fiery Collapses. As a shielder he provides persistent HP-scaling shields and batteries Pyro teammates. C4 is his best constellation for both roles. Source: https://keqingmains.com/q/thoma-quickguide/
Kit Summary
Creates a Blazing Barrier (HP-scaling shield); subsequent Normal Attacks by the active character refresh the shield (Fiery Collapses). His shield uptime depends on the active character attacking.
Flaming Assault): Summons multiple waves of Fiery Collapses that apply Pyro; generates shields on each hit. Primary Pyro application tool for Burgeon trigger.
Not leveled for either build.
Build Guide
🔮 Best Relic / Echo Set
Burgeon: 4pc Flower of the Paradise Lost (BiS — EM + Bloom/Burgeon DMG). 4pc Gilded Dreams (resin-efficient alternative). 2pc EM + 2pc EM (placeholder). Shield Support: 4pc Noblesse Oblige (ATK buff); 2pc HP% + 2pc Emblem of Severed Fate. Source: https://keqingmains.com/q/thoma-quickguide/
⚔ Best Light Cone / Weapon
Burgeon: Kitain Cross Spear (R3+ — reduces ER needs via passive + provides EM; recommended). Dragon's Bane (EM). Favonius Lance (covers ER needs). Shield Support: Favonius Lance (ER + team energy); Kitain Cross Spear (ER reduction); Black Tassel (pure HP%). Source: https://keqingmains.com/q/thoma-quickguide/
📊 Substats Priority
👥 Best Teams
Burgeon (recommended): Thoma + Nahida + Ayato/Kokomi/Childe + flex (second Dendro or Fischl)
Shield Support: Thoma + Yoimiya/Hu Tao/Arlecchino + DPS partner + flex
F2P Verdict
Viable at C0 in both roles. Burgeon: use Kitain Cross Spear (R3+ strongly recommended — reduces his very high ER requirement from ~240% to ~210%), stack EM artifacts, level to 90 for Burgeon damage scaling. Shield Support: Favonius Lance + HP% artifacts. C4 is his best constellation for both builds — restores 15 Energy after Burst, significantly reducing ER requirements. Avoid building secondary Pyro units in Burgeon teams (reduces Core generation rate). Source: https://keqingmains.com/q/thoma-quickguide/
Frequently Asked Questions
Is Thoma good for beginners?
He is functional and free to play-accessible. Burgeon Thoma requires building EM + Nahida, which is a specific investment; Shield Thoma is simpler but ER-hungry without C4. Source: KQM.
What is the best free weapon for Thoma?
Favonius Lance (ER + team energy) for shield support; Kitain Cross Spear (craftable) is his best option for Burgeon due to the passive ER reduction. Source: KQM.
What is Thoma's best constellation?
C4 — 'restores 15 Energy after Burst' — KQM: 'Thoma's best Constellation,' significantly reducing his very high ER requirement in both builds. Source: KQM.
Can Thoma be used in non-Burgeon teams?
Yes — as a Pyro shielder for Normal Attack DPS (Yoimiya, Arlecchino). His Fiery Collapses apply Pyro and maintain a persistent shield, though he requires on-field Normal Attacks from the DPS to refresh it. Source: KQM.