Game Guides

You can make your team stronger in Honkai: Star Rail V3.4 by building Sunday with the best relics, light cones, and team setups. Sunday’s skills are good for single target buffs, action control, and are easy to build. The Sorrowing Body skill raises a teammate’s CRIT Rate by up to 22% for three turns. This helps your damage dealers do better. Many players say the Sacerdos’ Relived Ordeal relic set and A Grounded Ascent light cone work best. Teams like Undying Warrior: Mydei and Aglaea High-speed make Sunday a great choice for the meta. If you want a support that boosts DMG and CRIT stats, this Build Guide will help you get the most out of Sunday.

Tip: Sunday’s buffs are great with summon-based characters. This gives your team even better teamwork.

Sunday Build Guide

Quick Summary

You can use this Build Guide to quickly set up Sunday for top performance in Honkai: Star Rail V3.4. Sunday stands out as a support who boosts single-target damage, controls action order, and fits into many team setups. You do not need his signature light cone to make him work well, which gives you more flexibility when building your team.

Here is a table that shows how Sunday compares to other support characters:

You should focus on speed and crit stats when following this Build Guide. For most teams, 120 speed is easy to reach. If you want your DPS to act twice in the first cycle, aim for 134 speed. Some players push to 161 speed for extra actions, but this can lower your damage stats.

Tip: Equip the 4-piece Sacerdos' Relived Ordeal relic set to boost Sunday’s speed and crit DMG buffs. This set works well with his kit and helps your team act faster.

For light cones, A Grounded Ascent is the best choice. You can also use Past and Future or Planetary Rendezvous if you want a 4-star option. Sunday’s Build Guide does not force you to use only one light cone, so you can adjust based on what you have.

When building Sunday, avoid the common mistake of focusing only on his lore or story themes. Some players misunderstand his role and think he needs to be locked into a certain playstyle. Instead, focus on his action advancement and crit buffs, which scale well with investment and team synergy.

Is Sunday Worth It?

You may wonder if Sunday is worth pulling for or building. This Build Guide helps you decide by looking at his strengths and team value.

Sunday fits well in both high-end and free-to-play teams. He works best with characters who benefit from crit buffs and action control. Here are some strong team examples:

You can also use Sunday in free-to-play teams by pairing him with 4-star light cones and accessible relics. His Build Guide allows for flexible setups, so you do not need rare gear to see results.

Sunday’s performance improves as you invest in his traces and relics. His action advancement and crit DMG buffs work well with Memoria threshold mechanics and Evernight bonuses. This means your team’s damage will go up as you build him further.

Here are some practical tips from us at Bahomu to get the most out of Sunday:

1. Equip A Grounded Ascent to boost energy and damage.

2. Level up traces in this order: Skill, then Ultimate and Talent, then Basic ATK.

3. Use the 4-piece Sacerdos' Relived Ordeal relic set for speed and crit DMG.

4. Aim for at least 200% crit DMG and high speed.

5. Try Broken Keel planar ornaments for extra team crit DMG.

Sunday is worth it if you want a support who is easy to build, fits many teams, and boosts your main damage dealer’s output. His Build Guide gives you the tools to make him shine in both early and late game content.

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Overview

Role & Strengths

You can use Sunday as a powerful support in Honkai: Star Rail. His kit gives your team several unique advantages. Sunday stands out because he boosts energy regeneration and action advancement for your allies. You will notice his skills work especially well with characters who summon extra units. This synergy helps your team act faster and deal more damage.

Here are some of Sunday’s main strengths:

• Sunday increases your team’s critical damage and overall damage output.

• His Ultimate gives 20% of a target’s max Energy and a Crit Damage Boost with the status 'The Beatified'.

• His Skill provides a 100% Action Advance for an ally and their Summon, plus a damage boost.

• Sunday offers the highest Critical Rate buff (20%) among support units, with limits to keep the game balanced.

You will find Sunday easy to build. He does not need rare gear or hard-to-get relics. Most players can follow this Build Guide and see strong results. You can fit Sunday into many team setups, which makes him a flexible choice for both new and experienced players.

Tip: Sunday’s action control and single target buffs help your main damage dealer shine in tough battles.

Stats

You should focus on the right stats to get the best performance from Sunday. The table below shows the recommended main and sub stats for his relics:

Aim for high crit damage and speed. Try to reach at least 200% crit damage and keep Sunday’s speed just below your main DPS. This setup lets Sunday act right after your damage dealer, boosting their output. You can also add effect resistance and HP for extra survivability.

Sunday’s stat priorities make him accessible for most players. You do not need perfect relics to see results. You can follow this Build Guide and adjust stats as you get better gear.

Relics

Best Sets

You want to equip Sunday with the best relic sets to maximize his support abilities. The 4-piece Sacerdos' Relived Ordeal set stands out as the top choice. This set boosts Sunday’s speed and critical damage buffs, which help your team act faster and hit harder. If you cannot get the full Sacerdos set, you can use the 2-piece Sacerdos with a 2-piece Messenger Traversing Hackerspace as a strong alternative. This mix still gives you good speed and utility.

Tip: Always aim for the 4-piece Sacerdos' Relived Ordeal set first. It works best with Sunday’s kit and supports his action control role.

Main & Sub Stats

You should focus on the right stats for Sunday’s relics. For main stats, choose Crit Damage on the Body, Speed on the Boots, HP% on the Sphere, and Energy Regeneration Rate on the Link Rope. For sub stats, prioritize Crit Damage, Speed, Effect Resistance, and HP%. Try to reach at least 200% Crit Damage and keep Sunday’s speed just below your main damage dealer. This setup lets Sunday act right after your DPS, boosting their output.

Optimization Tips

You can farm Sunday’s optimal relic sets in several Cavern of Corrosion locations. Here are some efficient farming strategies:

• Path of Jabbing Punch Cavern: Good for building Physical DPS relics. You can farm here if you also want to gear up Silverwolf.

• Path of Holy Hymn: Drops lightning and defense sets. Use this if you need relics for shielders, but watch your stamina.

• Knight of Purity Palace: Best for shielders who need defense relics.

• Path of Conflagration: Drops Fire and Imaginary sets. Useful if you want to build fire DPS characters like Himeko or Hook.

You should plan your stamina use and target the Cavern that gives you the relics you need for both Sunday and your other characters. This approach saves time and resources. The Build Guide recommends focusing on Sacerdos' Relived Ordeal first, then filling gaps with other sets as needed.

Note: Upgrade relics with high Crit Damage and Speed sub stats. These will give you the best results for Sunday’s support role.

Light Cones

Top Choices

You want to pick the best light cones to boost Sunday’s support power. Several top-performing light cones stand out in Honkai: Star Rail V3.4. These choices help Sunday increase your team’s damage and action control. Here is a table showing the top light cones for Sunday:

You can use "A Thankless Coronation" for the highest boost if you follow the Destruction path. "Thus Burns the Dawn" and "A Trail of Bygone Blood" also work well, especially if you want to focus on Skill and Ultimate damage. "See You at the End" gives a reliable Crit Damage increase.

Tip: Choose a light cone that matches your team’s main damage style for the best results.

F2P & Budget

You do not need premium light cones to make Sunday shine. Free-to-play and budget options can give you strong results. "Past and Future" stands out as the best free-to-play choice. When you use Sunday’s Skill, this light cone gives your allies a 16% damage boost. If you upgrade it to Superimposition 5, the bonus rises to 32%. This makes it very effective for most teams.

Other good 4-star options include "Carve the Moon," "Weave the Clouds," and "Planetary Rendezvous." Each offers helpful buffs, but "Past and Future" remains the top pick for budget players. "The Seriousness of Breakfast" also provides a steady damage bonus and can sometimes outperform premium options.

You can achieve strong performance with these budget light cones. You do not have to spend money to see Sunday’s full potential.

What to Avoid

You should avoid light cones that do not boost Crit Damage, Skill damage, or team buffs. Some light cones only help basic attacks or do not match Sunday’s support role. Stay away from light cones that focus on self-healing or defense, as these do not help Sunday’s main job.

Note: Always check if a light cone’s effect matches Sunday’s skills. Picking the wrong one can lower your team’s damage and slow your progress.

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Teams

Meta Teams

You can make very strong teams in Honkai: Star Rail V3.4 by adding Sunday. He works well with top characters and helps your team do more damage. Here are some top team examples:

• Phainon Team

  • Main DPS: Phainon

  • Support: Sunday

  • Support: Bronya, Robin, or Trailblazer (Remembrance)

  • Support: Sparkle, Tribbie, Ruan Mei, or Tingyun

• Anaxa Team

  • Main DPS: Anaxa

  • Sub DPS: Sunday, Bronya, or Trailblazer (Remembrance)

  • Support: Robin, Silver Wolf, or Tingyun

  • Healer: Aventurine, Huohuo, or Lingsha

These teams use Sunday’s buffs and energy boosts. This helps your main damage dealer attack more and hit harder.

F2P Teams

You do not need rare characters to use Sunday well. Free-to-play teams can still do great. The table below shows a strong F2P team:

This team can beat hard fights even without rare units.

Hypercarry Setups

You can use Sunday in hypercarry teams to make your main DPS even stronger. Sunday is special because he gives lots of Crit Damage, fast energy, and more Ultimates. The table below shows how Sunday compares to other support choices:

Sunday’s buffs help your hypercarry do more damage and use skills more often.

Synergy Tips

You can get the best from Sunday by following these tips from the community:

• Sunday makes your team do more damage and gives extra energy. He is a very important support.

• Robin works well with Sunday, especially in teams with follow-up attacks and summon users like Jing Yuan.

• Jing Yuan gets help from Sunday’s skill to remove crowd control and give back energy. This keeps your team fighting.

• Lingsha, as a healer, can use Sunday’s buffs to heal and do more damage at the same time.

Tip: Try using Sunday with characters who use summons or need more energy. This will help your team win more battles.

Traces

Skill Priority

You want to get the most out of Sunday, so you should focus on upgrading his traces in the right order. Traces are special upgrades that make Sunday’s abilities stronger. If you pick the best order, you will see a big boost in your team’s power.

Here is a table that shows which trace upgrades give you the biggest power spikes for Sunday:

You should start with Sunday’s Skill. This trace gives your team the best buffs and action control. Upgrading the Skill first lets you boost your main damage dealer’s Crit Rate and action speed. After that, you should work on Sunday’s Ultimate. This upgrade gives your team more energy and Crit Damage, which helps in tough fights. The Technique comes next. It helps you set up battles and gives your team an early advantage. You can leave Basic ATK for last. It does not add much to Sunday’s main role as a support.

Tip: Always check your materials before upgrading traces. Focus on Skill and Ultimate first for the best results.

Key Upgrades

You can make Sunday much stronger by picking the right key upgrades. When you level up his Skill, you increase the Crit Rate and action advance for your allies. This makes your main DPS hit harder and act faster. Upgrading the Ultimate gives your team more energy and a bigger Crit Damage boost. These two upgrades work together to help your team win more battles.

You should also look at Sunday’s bonus abilities. Some of these give extra Crit Damage or energy regeneration. If you have extra materials, unlock these bonus abilities to make Sunday even better. Remember, you do not need to max out every trace right away. Focus on the most important ones first, then upgrade the rest as you get more resources.

Note: Upgrading the right traces will help Sunday support your team in both early and late game content.

Materials

Ascension

You need to collect many things to fully ascend Sunday. Each level needs credits and special items. The table below shows what you need for each stage:

To finish all ascension levels, you need 15 Tatters of Thought, 15 Fragments of Impression, 65 Chordal Mirage, and 308,000 Credits. You also need 15 Shards of Desires for traces. You can get these as you play the game.

Tip: Start farming early. Getting all materials takes a while, so begin before you reach high levels.

Trace Materials

Upgrading Sunday’s traces makes him much better in fights. You need special items from different places. The table below shows where to find each material:

You can get Tatters of Thought from Calyx (Golden) in Penacony. Assignments and Simulated Universe battles also drop them. For Shards of Desires, fight Stagnant Shadow: Shape of Timbre in Penacony Grand Theatre. Tracks of Destiny come from rewards like high scores in Simulated Universe or reaching certain levels in Nameless Honor Battle Pass.

Note: Always check your items before using resources. Farming smart saves time and energy.

If you follow these tips and use the best farming spots, you can ascend and upgrade Sunday fast. This helps you unlock all his power for your teams.

Eidolons

Value

Eidolons give Sunday extra power and new effects. Each Eidolon changes how Sunday helps your team. You can make Sunday much stronger by unlocking the right Eidolons. Some Eidolons boost damage, while others add special effects that work well with certain team setups.

• Tribbie's E1 stands out as the most valuable Eidolon in Amphoreus. When you unlock this, Sunday deals True Damage equal to 24% of an ally’s total damage. This attack targets the enemy with the highest Max HP. You will see the best results when your team uses attacks that hit many enemies at once. If you use characters with AoE (area of effect) skills, this Eidolon becomes even better. Sunday’s E1 helps your team finish tough fights faster and makes him a top pick for many team comps.

Note: Eidolons that boost True Damage or work with AoE attacks can change how you build your team. Try pairing Sunday with AoE damage dealers for the biggest impact.

Best Picks

You want to know which Eidolons are worth your resources. Top players and the community agree on the best choices for Sunday. Here is a list of the best Eidolons to invest in:

1. Dawn of Sidereal Cacophony (E6) – This is Sunday’s sixth Eidolon. It gives the biggest boost to his power and team support. If you want the best version of Sunday, aim for this one.

2. Faith Outstrips Frailty (E2) – This Eidolon gives a strong boost to Sunday’s effectiveness. Many players recommend it for better team results.

3. Millennium's Quietus (E4) – This Eidolon lets Sunday’s damage ignore enemy DEF. It is a good pick if you have limited resources.

4. Sculpture’s Preamble (E1) – This is the least powerful Eidolon. Most players do not recommend investing in it unless you want every upgrade.

Tip: If you cannot get all Eidolons, focus on E2 or E6 for the best value. These give Sunday the biggest upgrades for your team.

Sunday helps your team act faster and get more energy. He also gives a higher crit rate. Sunday works best with teams that use followers or summons. The table below shows how Sunday is different from other top supports:

Try out new team ideas and share what you make. Come back soon for more guides and updates!

FAQ

How much speed does Sunday need?

You should aim for at least 120 speed. For advanced teams, try 134 speed. If you want Sunday to act before your main DPS, keep his speed just below your damage dealer.

Can Sunday work without his signature Light Cone?

Yes! You can use 4-star options like "Past and Future" or "Planetary Rendezvous." These light cones give strong buffs and work well with Sunday’s kit.

What relic stats should I focus on for Sunday?

Focus on Crit Damage, Speed, and Energy Regeneration Rate.
Try to reach 200% Crit Damage and keep Sunday’s speed just under your main DPS.

Does Sunday need Eidolons to be strong?

You do not need Eidolons for Sunday to perform well. His base kit gives great buffs. Eidolons add extra effects, but you can clear most content without them.