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.
This Constellation can make it easier to build rotations around Thoma’s long cooldowns. However, it does not affect Pyro/Physical Thoma, as it only procs when Thoma is off-field. Additionally, this constellation does have a 20 second cooldown so if you have a shorter rotation, it may not consistently proc every rotation.
This Constellation is also able to be triggered by some characters’ Skills and Bursts without taking damage as shown in the following:
Anemo MC: E (both variants), Q
Bennett: Hold E
Dori: Q
Kazuha: E (both variants), Q
Kujou Sara: Q, C2 (within radius)
Sayu: Hold E
Yaoyao: E/Q (Jade Radish explosions)
Kujou Sara: E
Sucrose: Q
For Sucrose, standing directly under or by the center of her Burst will have the greatest effect on triggering Thoma’s C1, but even then it is unreliable. For Sara, after using her Charged Shot, you must stand in the center or close to the center of the subsequent explosion from the Charged Shot to proc Thoma’s C1.
Crimson Ooyoroi's duration is increased by 3s.
Once again, another Constellation that makes it easier to build rotations around Thoma’s cooldowns by extending his Burst uptime. This Constellation extends DPS time, and provides a small quality-of-life adjustment for Shield Support Thoma.
Increases the Level of Blazing Blessing by 3.
Maximum upgrade level is 15.
Some nice Talent Levels for his Skill that make it easier to maintain Thoma’s shield throughout his Burst by giving a stronger base and a higher Max DMG Absorption.
After using Crimson Ooyoroi, 15 Energy will be restored to Thoma.
Thoma’s best Constellation by far. While not required to play him, it does lower his ER requirements by quite a bit (~25-30%). This allows ER substats to be reinvested into HP for Shield Support Thoma, or into CRIT/EM subs for DPS Thoma.
Increases the Level of Crimson Ooyoroi by 3.
Maximum upgrade level is 15.
More of a buff to Thoma’s Fiery Collapse DMG than increasing the DMG Absorption created by each Fiery Collapse. This Constellation is very similar to C3 as it makes it easier to maintain Thoma’s shield.
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 second-best Constellation. Provides a nice buff for the on-field unit in Shield Support teams and in off-field DPS Thoma teams, while also increasing Pyro and Physical Thoma’s own damage.