From giant space bugs to deadly dancing puppets, you’ve probably realized that some of the bosses in Honkai: Star Rail mean business. Between tight mechanics and damage numbers that will send you back to the relic caverns, the hardest bosses here don’t hold back.
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Sure, there are quality-of-life mechanics like Casual Mode which reduces boss difficulty, but for those who seek a true battle, you’re in for a challenge. The many bosses you’ll encounter on your trailblazing journey require a mix of strategy, patience, and a close look at team composition. From debuff-heavy moves to multiphase challenges, get ready to relive the toughest boss fights in Honkai: Star Rail.
10
Doomsday Beast
The Doomsday Beast is the first major boss you’ll encounter, and while Welt may save you in your first run-in with this monster, you won’t be so lucky the second time. Its left and right arms dish out significant Imaginary and Quantum damage. At the center of the battlefield lies the Antimatter Engine, which provides huge buffs to the rest of its body and a powerful single target attack when it finishes charging.
The only way to cut through the two phases of this beast is by breaking through all three of its body parts. This leaves the Doomsday Beast vulnerable to attacks, and gives you an opportunity to pile on the damage. Once reaching the second stage, all of its attacks become significantly more deadly, with higher damage values and additional debuffs..
9
Cocolia, Mother of Deception
Cocolia is where the training wheels come off. You originally fight her as a regular human, but once she embraces the energy of a Stellaron she acts as the final boss of the Jarilo-VI storyline. Packing ice-cold attacks, Cocolia will freeze your team before you know what hit them. Once she enters her second phase, she also gets access to devastating AOE imaginary attacks that will leave your healers scrambling.
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Make sure to build your team with the effect res stat or a way to cleanse debuffs, otherwise, Cocolia will happily pick apart your team while they’re all immobilized. If you’re under-leveled or lacking damage dealers, brace yourself, she’s a wall of icy doom.
8
Ten Stonehearts: Aventurine of Stratagems
Fighting against Aventurine feels like a battle against the House of a Casino, and you should remember that the House always wins. Throughout the battle, Aventurine will make it rain with Imaginary dice that inflict massive AOE damage to your whole team, but it’s his signature attack where the money is.
Aventurine will summon a pair of dice for you to destroy, and if you fail to destroy numbers that are cumulatively higher than his, then your team will be immediately hit by significant Imaginary damage followed by an action delay. In his second phase, Aventurine’s gambling strategy ramps up even higher, forcing you to roll an even higher number of his dice or suffer serious consequences.
7
Harmonious Choir
The Harmonious Choir is equal parts mystic and mind-bending. This boss specializes in constantly harassing your characters while protecting its toughness bar through melodic charms and minions, adding an unusual twist that forces you to rethink your battle strategy.
Its moves don’t hit like a truck, but without debuff cleansers, its ability to put your units asleep will become a real problem. You also can’t brute-force your way through without breaking its massive toughness gauge, so you’re left constantly scrambling to stay alive. With the Choir’s damage ramping up significantly in the third phase, this battle ultimately comes down to a break-effect race.
6
The Past, Present, and Eternal Show
The Past, Present, and Eternal Show brings the drama, turning the fight into a high-stakes performance rather than a simple brawl. Its menagerie of different attacks makes every action feel like part of a larger, deadly script. Each of the Show’s performers specializes in a different aspect. The Past is all about direct damage, The Present will flood you with DoT effects, and The Future will overwhelm you with debuffs.
Its second-phase special move, “Dance for Synchrony,” combines all the Show’s acts, slamming your team with a combination of all three of their strengths. Taking down the shared health of the Show means knocking out all three at the same time. If you don’t have patience or a good plan, the Past, Present, and Eternal Show will give you a performance you’ll never forget.
5
Starcrusher Swarm King: Skaracabaz
Skaracabaz, the Starcrusher Swarm King, is like an insectoid aircraft carrier, chock-full of flying reinforcements that will bury you in an onslaught of Wind damage. On his own, his Quantum-based laser attacks will decimate anyone not fully prepared to withstand some serious punishment. However, what makes Skaracabaz dangerous is his additional summons.
Throughout the battle, Skaracabaz propagates smaller drones that will constantly explode onto your team. This damage can quickly spiral out of control, forcing you to balance between destroying Skaracabaz or his minions.
4
Something Unto Death
Something Unto Death embodies death itself, turning the fight into a grim chess match rather than a simple brawl. Its attacks revolve around the “Morbid Dream” status effect, which deals a killing blow to your characters and leaves nothing but a grave marker behind. The only way to free your characters from this state is to attack these markers until they break, forcing you to choose between saving allies or attacking the boss.
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In its second phase, Something Unto Death becomes even stronger, gaining an AoE version of its Morbid Dream attack called “Watery Dissolution.” Unless you’ve properly prepared to counter these marks, this mechanic can quickly overwhelm your team. Bringing characters with abilities to clear these marks is essential, lest the grim reaper of Honkai: Star Rail leaves you stuck in an eternal dream.
3
Stellaron Hunter: Sam
The fight against Stellaron Hunter: Sam is a true battle of attrition. Alternating between the normal and Secondary Combustion state, Sam will use their normal form to absorb attacks. Once reaching the Secondary Combustion state, the true battle begins. Sam’s damage ramps up with brand-new fiery attacks, and every use of your skill points will begin to burn through each of your units’ health.
Your only hope to avoid turning to ash is to break through Sam’s weakness bar when they enter their second state. If you can survive the molten onslaught of this mecha warrior, you just might have a chance to defeat them.
2
Borisin Warhead: Hoolay
Hoolay is a lupine berserker whose bloodlust is unmatched. His “Moon Rage” state allows him to build up stacks of “Irate,” which upon gaining eight of them, allows him to unleash a devastating Lightning damage attack. This Moon Rage also extends to the scores of Wolftroopers that he summons into battle.
As the fight goes into its second phase, Hoolay powers up even further, giving him access to a powerful new AoE attack. Hoolay is a true pack leader who specializes in gradually building up his power to deal major blows, making it feel like he’s always one step away from unleashing chaos.
1
Shadow of “Feixiao”
The Shadow of “Feixiao” is nothing short of a hurricane of force that will blow away any unprepared team. This boss version of Feixiao packs a whopping three phases that are progressively more difficult. If that wasn’t enough, this version of Feixiao also pits you against her Ecliptic Inner Beast, complete with three different body parts that won’t hesitate to shred your team.
If you manage to fight your way into her third phase, it becomes critical that you’re able to put her in a Weakness Broken state. Failing to do so will subject you to her fiercest attack “Sweep the Heavens, Swallow the Earth,” which not only does massive damage but enhances each of her unbroken parts. There’s a reason Feixiao was named one of the seven Arbiter-Generals, and this fight will make sure you never forget it.
- Released
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April 26, 2023
- Engine
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Unity
- ESRB
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T for Teen
- How Long To Beat
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24hours
- Steam Deck Compatibility
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yes
- OpenCritic Rating
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Strong
- Cross Save
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yes
- Cross-Platform Play
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Yes, Honkai Star Rail does have cross progression on PS5