"Under the Clear Sky" is a hardcore tactical strategy and character development mobile game that combines traditional Japanese-style chess with a unique "Rhythm" system. Characters can transform during battles, gaining comprehensive attribute boosts and skill enhancements. The game features a large number of characters, and some players are curious about the ranking of character strength in "Under the Clear Sky." Here, we will share a list distinguishing the T0 to T2 tiers, helping everyone plan their lineup reasonably.

T0:
Currently, only Hilde has reached the top. As a commander class, he possesses all-around support abilities, not only providing significant damage boost to teammates over a wide area but also purifying negative statuses and dispelling enemy buffs, fully covering all the needs for a support role in both PVE and PVP environments. His talent, "Diverse Samples," triggers a group damage increase effect when the team configuration includes three or more classes, greatly enhancing the team's overall output efficiency.
The Rhythm form "Hannibal" further enhances his adaptability to the team, offering area damage reduction and instant Buffs while healing. Although her second Rhythm form, "Unicorn," has some AOE control capabilities, considering its practical value in combat, the priority for unlocking it is slightly lower; it is recommended to strengthen it when resources are abundant.

T1:
Xian, as one of the outstanding SR characters, is an alternative to Hilde. Although he does not have purification and dispel abilities, he can still serve as a qualified single-target support in specific lineups.
Dina Nix, on the other hand, is a more purely healing-oriented commander character. Her healing amount far exceeds Hilde's and she also has shield and negative status purification abilities, which may open up new playstyles in PVP. It's worth noting that her second Rhythm form leans towards DOT (Damage Over Time) output, but due to its delayed activation mechanism, it performs less ideally in PVE, so investment should be made cautiously.
Li, as an agent class, stands out particularly in terms of damage boost and functionality. He can not only inflict fixed damage on enemies but also self-buff to enhance output, benefiting the entire team. The Rhythm form "Millerka" provides a second action and powerful AOE skills, making him a strong attacker in both PVE and PVP. The second Rhythm form "Scorpio" transforms into an aberration class, possessing abilities to dispel buffs, reduce energy, and perform dual attacks, making him one of the most functionally versatile PVP characters in the current version.
Weiz, as a defense-oriented assault class, cannot be overlooked. As the core tank of the team, he not only has the ability to self-recover during battle but can also obtain resurrection armor after high awakening, increasing fault tolerance. The Rhythm form "Beetle Revolution" offers invincible shields and reduced critical resistance, making him more stable when protecting allies. His second form, "Hercules," focuses on PVP capture mechanisms, being adept at controlling key enemy roles, though it offers limited benefits in PVE.

Crain Tang, an aberration class, shows overwhelming superiority when facing strong single opponents. Through the duel mechanism, he reduces the target's output, and when awakened above 4 stars, he can convert normal attack and skill damage into fixed damage by a certain ratio, greatly increasing output efficiency. The second Rhythm form "Whirlwind" grants him higher mobility and the ability to act again after a kill, making him equally capable in multi-target battles.
Sedric, a representative of the aerial class, boasts extremely high mobility and, after the Rhythm transformation, gains a shadow stealth mechanism, giving him a great advantage in assassination and evacuation missions. His ultra-high multiplier AOE skill "Final Judgment" can turn the tide of battle in one hit and achieve continuous suppression by regaining energy through killing targets, making him one of the few characters in the current version capable of maintaining continuous bursts.
Leno, as a shooter class, is the pinnacle of single-target damage in the current PVE environment. With a strong self-buff mechanism, he can deal massive damage to bosses in a short time. After the second Rhythm form "Fergal" changes to an aerial class, it comes with AOE map skills and attribute auras, enhancing the overall combat capability of teammates, combining AOE damage and support functions.

T2:
Slime, Morai, and Huihu, although their mechanics are not bad, their performance in actual combat is slightly inferior. Slime has hard control and damage potential but takes a long time to activate; Morai’s mechanics conflict with the Rhythm state, limiting stable output; Huihu, as a fixed-damage character, has a high output frequency but lacks survival assurance, making it difficult to take on guard duties. Overall, these characters are more suitable as secondary choices or for specific stage targeting.

The evaluation of character strength in "Under the Clear Sky" is influenced not only by class positioning and skill mechanisms but also closely related to Rhythm forms, awakening levels, and actual combat environments. While high-strength characters are certainly worth prioritizing, under reasonable team composition and strategic selection, even non-T0 characters can shine in specific scenarios, showcasing unique tactical value.