Best Four Star Eidolons in Honkai: Star Rail

In Honkai: Star Rail, Eidolons are like a new coat of paint that allows your four-star characters to compete with their shiny five-star cousins. These upgrades are unlocked by obtaining additional copies of characters, and each Eidolon provides unique effects that enhance your character's skills, adding utility, damage, or survivability.

While it takes some faith in the Gacha Gods to acquire multiple Eidolons, certain Eidolons in particular make the struggle worth it, breathing new life into four-star characters and making them feel like completely different entities. From additional effects to new buffs, here's a rundown of some of the best Edolons available for four-star characters in Honkai: Star Rail.

10 Tingyun's E6: Peace brings wealth to all

Tingyun's E6, Peace Bring Wealth to All, greatly improves her utility by making her Ultimate regenerate ten more energy for target allies. This extra energy regeneration doesn't sound like much, but it adds up quickly. For example, your DPS will be able to use their Ultimate one turn earlier, which in turn increases their own damage output and future energy generation potential.

This Eidolon pushes Tingyun's support role to new heights, ensuring your primary damage dealers pump out their Ultimates and continue to apply pressure on enemies.

9 Herta's E2: Keep The Ball Rolling

Herta's E2 increases her Crit Rate by 3% whenever her talent triggers. This effect stacks up to five times, giving her a potential 15% Crit Rate increase. This stacking mechanic makes Herta snowball an absolute threat in Pure Fiction where her AOE kit shines.

With this Eidolon, Herta's ability to sweep through mobs becomes much more reliable, as her Crit Rate steadily increases whenever her talent activates, which is often. For players looking to maximize Herta's effectiveness, E2 makes her much more lethal and really emphasizes her playing spin to win.

8 Astas E6: Galaxy Dreams in peace and comfort

Asta's E6, Galaxy Dreams in Calm and Comfort, reduces the number of charge bars lost each turn by one. This buff gives her the ability to maintain her powerful attacks for longer periods of time, reducing the downtime between using her skill and gaining the maximum amount of Talent charges.

This Eidolon is key for Asta players who rely on her for consistent buff uptime, especially in longer battles where maintaining her Charging stack is critical to maintaining her full potential.

7 Pelas E1: Victory report

Pela's E1, Victory Report, is easy to underestimate because it's not too flashy. However, the key lies in its activation requirements. Pela gains five energy when ANY enemy is defeated, not just enemies she defeats herself. This makes her much more self-sufficient in energy generation, allowing her to pump out her Ultimate-defining kit much more often.

This Eidolon makes Pela a stronger support character, all but ensuring that her Ultimate maintains her defense breakdown in long fights. It's especially useful for her role in applying consistent debuffs and contributing to the overall team energy economy.

6 Yukong's E6: Bowstring Thunderclap

Yukong's E6 gives her a significant boost every time she uses her Ultimate. Upon activation, she immediately gets a stack of Roaring Bowstrings, making Yukong go from SP neutral at best to SP positive. This provides a notable bump to her effectiveness and makes her even more valuable for Crit-dependent or burst-damage hypercarries that can gain skill points.

This Eidolon enhances Yukong's role as an attack buffer, helping her maintain support while benefiting from the additional Roaring Bowstrings stack to increase her own damage.

5 Lynx's E2: Noon Of Portable Furnace

Lynx's E2, Noon of Portable Furnace, allows her skill to apply one instance of debuff application resistance. This allows Lynx to buff your units against powerful debuffs like sleep or stun without needing her Ultimate.

This Eidolon is the perfect addition to Lynx's kit, which often relies on frequent Ultimates to deal with enemy crowd control effects. With so many five-star Abundance units already coming equipped with tools to provide team-wide debuff resistance, this Eidolon allows Lynx to punch above its weight and earn a permanent spot on any team.

4 Gallagher's E2: Lion's Tail

Gallagher's E2, Lion's Tail, turns his skill into a versatile support tool by additionally removing a debuff from a target ally. Along with the cleanse, he also gives them a 30% boost to Effect RES for two turns, making it harder for them to take additional debuffs. This dual effect greatly increases Gallagher's value as a team protector, ensuring that allies can continue to attack without the hassle of damaging status effects.

This Eidolon almost feels like it could have been part of Gallagher's original kit, it's just that good. With debuff cleaning becoming an increasingly important part of an Abundance unit's kit, Gallagher getting a clean makes this Eidolon invaluable.

3 Qingque's E4: Right On The Tiles

Qingque's E4 improves her skill by giving her a fixed 24% chance to gain an effect called Autarky after using it. Autarky lasts until the end of the current turn and grants a powerful bonus: when Qingque uses a Basic ATK or Enhanced Basic ATK, she immediately launches a follow-up attack against the same target, dealing Quantum DMG equal to 100% of the previous attack's damage.

This Eidolon can potentially double Qingque's damage, as the follow-up attack adds additional damage for free. Since you will often cycle through the tiles of Qingque's skill, there is always a good chance to trigger Autarky. This increase in Qingque's consistency in dealing damage makes her a more reliable DPS in both single and multi-target situations.

2 March 7 E2 (The Hunt): Blade Dances On Waves' Flight

Blade Dances on Waves' Flight Mar 7 deals a special follow-up attack whenever her designated Shifu uses a Basic ATK or Skill, dealing imaginary DMG equal to 60% of her ATK to the primary target. Not only does this extra hit add more damage to March's toolbox, it also adapts to Shifu's Path, triggering effects accordingly and even gaining a charge point in the process. If that wasn't good enough, if there is no primary target, she will still hit a random enemy, ensuring that this effect is never wasted.

This Eidolon provides a simple boost to March 7's powerful sub-dps kit, giving her even more synergy with her Shifu. The once-per-turn trigger keeps things balanced, but it's still a great boost that keeps her damage rolling off her turn.

1 Xueyis E6: Saṃsāra, mastered

This Eidolon seems simple enough but the effects it has on Xueyi's damage are profound. Xueyi's E6, Saṃsāra, Mastered, reduces the maximum stack limit of her Karma to six, allowing her to stack Karma faster and more efficiently.

This change makes a night and day difference and greatly increases her DPS potential with an increase in the number of follow-up attacks she can perform. As the name suggests, with this Eidolon Xueyi truly becomes a master of his break-focused abilities.

Honorable mention: E2 Klesha, broken

Klesha, Breached enhances Xueyi's talent by allowing her follow-up attack to reduce the enemy's Toughness regardless of the enemy's Weakness type. In addition to that, the Talent also restores Xueyi's HP by 5% of her Max HP each time it is triggered. This Eidolon also makes a big impact on Xueyi's kit, and when working alongside her E6, it really shines.