Honkai: Star Rail – Top Sunday Builds (Light Cones, Relics & Teams)

Building Sunday optimally in Honkai: Star Rail can greatly enhance his role as a support character in various team compositions, particularly those featuring DPS characters who can summon additional allies. Sunday is a 5-star Imaginary character aligned with the Path of Harmony, making him a valuable support who can enhance his teammates’ abilities. Following an extensive series of leaks revealing details about his design and gameplay mechanics, HoYoverse officially confirmed Sunday as a new character in Honkai: Star Rail version 2.7, joining Fugue, the 5-star iteration of Tingyun.

Sunday’s skill can boost the damage of an ally and their summons, with an even greater damage bonus if the ally has a summon. Additionally, his skill enables both the enhanced ally and their summon to act immediately, while also increasing their critical hit rate. His ultimate ability allows him to regenerate energy for an ally, designating them and their summon as The Beatified, which provides a critical damage bonus influenced by a portion of Sunday’s own critical damage, alongside a fixed value. Using his skill on a Beatified ally also recovers a skill point in Honkai: Star Rail.

Top Light Cones for Sunday

There Are Many Light Cone Options for Sunday

To maximize the support potential of Sunday, it’s essential to focus on his build, starting with the right Light Cone. The ideal 5-star Light Cone for Sunday is “A Grounded Ascent,” his signature weapon. This weapon is specifically designed for him, allowing him to regenerate 6 energy after using his skill or ultimate on a single ally and granting them a stack called Hymn, providing a 15% damage increase, which can stack up to three times.

The following table outlines the best builds for Sunday in Honkai: Star Rail, featuring Light Cone recommendations, optimal stats, preferred relics, and more:

Moreover, after two usage instances of his Skill or Ultimate on a single ally, the Light Cone offers the recovery of one skill point. “A Grounded Ascent” is ideal for Sunday, consistently buffing the same ally while benefiting from the Light Cone’s damage enhancement, enabling him to transform into a formidable hypercarry unit. If you don’t have access to “A Grounded Ascent,” the second-best 5-star Light Cone for him is “But The Battle Isn’t Over.” This option boosts the user’s energy regeneration rate by 10% and restores a skill point when they use their Ultimate on an ally.

Additionally, when the wielder employs their Skill, the next ally’s attack is amplified by 30% more damage, complementing Sunday’s unique kit, which allows the buffed ally to act immediately, providing them with the extra damage boost that combines effectively with his own.

Alternatively, you can use “Earthly Escapade,” Sparkle’s signature Light Cone, as a replacement to enhance his critical damage and automatically provide critical rate and critical damage bonuses to allies. If these are not available, several solid 4-star Light Cones can also work well with Sunday in Honkai: Star Rail.

“Past and Future” stands out as the top 4-star Light Cone for Sunday. When he uses his Skill, the following ally’s immediate attack gains a 16% damage boost for one turn, synergizing well with Sunday’s Skill, forcing the main DPS to act and increasing their damage output. Notably, this is a free-to-play (F2P) 4-star Light Cone.

Other 4-star Light Cones worth considering for Sunday are “Carve the Moon, Weave the Clouds” and “Planetary Rendezvous.” The former can introduce a degree of randomness, which may be frustrating at times, but it offers robust buffs including Attack, Critical Damage, and Energy Regeneration Rate enhancements. “Planetary Rendezvous” provides a significant damage boost, but is limited to characters dealing the same type of damage as the user—specifically, Imaginary. Thus, if Sunday is on an Imaginary team, it can perform admirably; otherwise, “Past and Future” is likely the go-to Light Cone.

Optimal Relics, Ornaments, & Stats for Sunday

Concentrate on Key Stats

The next step for Sunday’s ideal build is selecting the right gear. The best Relic set for him is “Sacerdos’ Relived Ordeal.” With two pieces equipped, Sunday gains a 6% boost in Speed. When all four pieces are used, after he casts a Skill or Ultimate on an ally, that ally’s Critical Damage increases by 18% for two turns, an effect stacking up to twice. This Relic set aligns perfectly with his role in providing offensive enhancements to the main DPS in Honkai: Star Rail.

Given that one of Sunday’s primary strengths lies in boosting allies’ Critical Damage, the ideal Ornament set for him is “Broken Keel.” By equipping it, he gains a 10% Effect Resistance increase, and when his Effect Resistance hits 30% or higher, all allies enjoy a 10% increase in Critical Damage. While farming these Relics and Ornaments, ensure that Sunday’s Effect Resistance is at 30% to activate the benefits of Broken Keel.

Critical Damage is crucial among Sunday’s stats. Even though he may not directly use it in combat, he can offer Critical Damage buffs relative to his own Critical Damage percentage. Aim for a Critical Damage stat around 200% or higher. Sunday should also maintain a decent Speed level—ideally, one point lower than the main DPS’s Speed. This strategy allows the main DPS to act first, after which Sunday can facilitate their subsequent move using his Skill. In addition, boosting Energy Regeneration Rate can enhance Ultimate availability while improving HP can contribute to his survivability.

Optimal Team Comp for Sunday

Sunday as a Versatile Support Character

Sunday is an incredibly versatile support and can work effectively in various team setups. His main focus is on enhancing the primary DPS and their summons, making him an ideal support for characters like Jing Yuan. He also pairs excellently with the Amphoreus characters in Honkai: Star Rail who are aligned with the Path of Remembrance, as this Path specializes in summoning memosprites onto the battlefield.

The following table highlights a few recommended team compositions for Sunday:

As mentioned before, Sunday is a universal support, allowing him to fit in traditional hypercarry teams centered around a single DPS character. His partnership with Robin can create a powerful synergy, consistently delivering formidable offensive boosts that enable the DPS to dominate the battlefield. Both Robin and Bronya can accelerate the team’s actions, and combined with Sunday’s abilities, this allows the DPS to remain engage in combat continually throughout Honkai: Star Rail.

Skill (Trace) Priority for Sunday

Focus on Sunday’s Key Abilities

When upgrading Sunday’s abilities, you may have to prioritize certain ones due to limited materials. Sunday’s Skill is central to his kit, so it should be the first ability you enhance. Following that, you should focus on leveling up his Ultimate and Talent together, as they are crucial to his overall efficiency. The least priority, which can even be overlooked, is the Basic Attack.

In conclusion, optimizing Sunday’s build is straightforward, and when he reaches his full potential, he becomes an invaluable team member. In Version 2.7, Sunday is already recognized as an exceptional support character, even though he shares similarities with other units. However, with the introduction of the Remembrance Path in Version 3.0, Sunday is set to become an essential ally in many team setups due to his buffing capabilities, making him a solid partner for upcoming Remembrance characters in Honkai: Star Rail.