The Best Sunday Build And Play Guide In Honkai: Star Rail

If you’ve been playing Honkai: Star Rail for a little while, you likely already know that the developers always tend to make new character launches very enticing, and it was the same in the case of Sunday. While he was first shown at the start of the Penacony arc, players had to wait until Version 2.7 to get his playable version.

The Astral Express crew preparing for battle in Honkai: Star Rail.

Honkai: Star Rail – How To Build A Strong Team

Here’s how to build a strong team in Honkai: Star Rail!

Sunday is a five-star Imaginary Harmony unit that excels at advancing the turn for one character. If you build him properly, this character can single-handedly show a significant difference in the damage numbers of your main DPS.

Best Sunday Relics And Planar Ornaments

The first step of building any character is choosing the right set bonuses on their relics and planar ornaments, and here are the best ones for Sunday:

Type	Name	Synergy With Sunday
Relics	Sacerdos’ Relived Ordeal	This is the best relic set for Sunday as it enhances the Crit DMG boost he provides by a massive 36 percent as long as you consistently use your Skill on the same ally.
Relics	Messenger Traversing Hackerspace	As a second option until you have the above set, you can try Messenger Traversing Hackerspace on Sunday for the increased SPD and team-wide buff upon using the Ultimate.
Planar Ornaments	Lushaka, the Sunken Seas	This is the best ornament set for Sunday as it can help him give an ATK bonus to the main DPS alongside all the other buffs he provides. However, you have to make sure that your DPS is in the first slot of the team.
	Broken Keel	Broken Keel is another great set for Sunday as it can enhance his Crit DMG buff and also requires you to have some Effect RES, which can prevent him from getting crowd-controlled.
	Sigonia, the Unclaimed Desolation	Finally, while not as good, you can also try the Sigonia set in endgame modes like Pure Fiction since his increased Crit DMG will also increase the buff he provides.

Sunday Relic Stat Priority

Getting the perfect relic stats on Sunday can both be easy and difficult depending on your luck since he only needs a few specific stats:

Type	Main Stat Priority	Sub Stat Priority
Head	HP	Crit DMG > SPD > Effect RES > HP/DEF
Hands	ATK	Crit DMG > SPD > Effect RES > HP/DEF
Body	Crit DMG	SPD > Effect RES > HP/DEF
Feet	SPD	Crit DMG > Effect RES > HP/DEF
Planar Sphere	HP/DEF	Crit DMG > SPD > Effect RES > HP/DEF
Link Rope	Energy Regeneration Rate	Crit DMG > SPD > Effect RES > HP/DEF

Ideally, you’d want to either have an extremely high SPD on Sunday or
just lower than your main DPS
, more on this below.

Best Sunday Light Cones

Honkai Star Rail sunday light cone screen.

Light Cones are essentially the weapons for characters in Honkai: Star Rail, and it’s essential to choose the option that synergizes well with the character:

A Grounded Ascent	As you’d expect, Sunday’s signature Light Cone serves as the best choice for him as it gives him some necessary Energy Regen while also increasing the DMG of the main DPS by up to 45 percent. Since Sunday is skill-point-negative, this cone also helps that by providing a free point for every two Skill or Ultimate usage.
But The Battle Isn’t Over	Bronya’s signature Light Cone is a close second for this character as it does almost everything similarly except for the 30 percent DMG bonus instead of 45. The SP also regenerates slower with this one.
Earthly Escapade	Finally, this Light Cone can also be used on Sunday as you can easily maintain the Mask effect since he consistently regenerates Skill Points when his Skill is applied on a Beatified ally.
Past And Future	This Light Cone will simply give your main DPS a 32 percent DMG boost whenever Sunday advances their movement forward.
Planetary Rendezvous	If you’re using Sunday with another Imaginary DPS like Dr. Ratio or Dan Heng: Imbibitor Lunae, you can use this Light Cone to get an added bonus.
Carve the Moon, Weave the Clouds	Finally, this Light Cone is good for almost every Harmony character since it simply provides one buff at random whenever the equipped character gets a turn.

Sunday Skill Overview And Priority

Thankfully, Sunday is a fairly easy character to understand, and here’s what you need to know about him:

Upon using your Skill on an ally, the target ally and their summon instantly gets a turn, has a debuff removed (crowd control debuffs are usually prioritized), and gets a damage bonus. The damage bonus is higher if the ally has a summon.
When you use your Ultimate on an ally, Sunday increases their Crit DMG based on his own while also making the target Beatified. This lasts for three turns, and using your Skill on the Beatified instantly regenerates a Skill Point.
He also provides a whopping 20 percent Crit Rate to the target upon using his Skill and gets a bunch of Energy regen bonus to get his Ultimate faster.
It’s ideal to have Sunday’s SPD one or two points lower than your main DPS since that’ll lead to your situation where your DPS gets a turn right before Sunday, and then Sunday can advance their movement forward again.

Essentially, you’d never use Sunday’s basic attack so you can ignore that talent. Apart from that, you’d want to upgrade his talents in the following order: Skill – Ultimate – Talent. You can also unlock the bonus abilities and side nodes as soon as possible.