Starscourge Radahn is heralded as one of the mightiest living demigods, having fought Malenia the Severed to a standstill during the war of the Shattering. However, his resulting affliction with the Scarlet Rot caused him to be driven to insanity, crippling him and reducing him to a state of feral rage. He is located in Caelid, where he can be accessed from Redmane Castle after activating the by progressing far enough in Ranni's questline, or activating any site of grace in Altus Plateau. Show
Defeating this Boss is mandatory for at least one ending of the game and to complete certain NPC questlines. However he does not necessarily have to be defeated to finish the game. Radahn's boss fight is unique in that there are a great number of NPC summons available for the fight. When approaching him, make sure to use the terrain to your advantage to avoid his incoming ranged attacks. He drops the Remembrance of the Starscourge and Radahn's Great Rune when defeated. Bosses are unique and challenging Enemies that can be encountered all over the Lands Between. Shardbearers drop their own unique Great Rune and Remembrance capable of being transformed into powerful Weapons, Spells, Ashes of War, and Talismans for the player.
Elden Ring Starscourge Radahn BossStarscourge Radahn is a Demi-God Boss found in Wailing Dunes
NPC Summons:
Elden Ring Starscourge Radahn LocationStarscourge Radahn can be found through a portal at Redmane Castle, Caelid. [Elden Ring Map Link]
Starscourge Radahn Combat Information
Absorptions
The absorption numbers are the % of your damage that gets blocked. For example, if an absorption is 60, 40% of that damage by that type will go through and 60% is absorbed. Bigger number = less damage. An absorption of 100 means no damage goes through, and a resistance of -100 means the enemy takes 2x damage from that source. 0 means damage goes pretty much as is. Resistances
The resistance numbers are the buildup amount to trigger it. For example, if a resistance is 100 you must deal 100 points of whatever aux buildup to trigger it. Note that these go down over time, and increase each time the effect procs.
Results of Defeat on World
Elden Ring Starscourge Radahn Boss GuideStarscourge Radahn Boss Video Guide[video coming soon]
Starscourge Radahn Fight StrategyGeneral Tips
Melee UsersPhase 1 100% health - 75% During the first phase he will have a few attacks but he moves around a lot on horse back, a fast weapon with bleed is effective against Radahn, such as the uchigatana, bloodhounds fang or the hookclaws, most of the time the summoned NPC's will keep the aggro off of you which will allow you to get a few chain attacks before the next phase, the bleed builds up quick allowing for a massive and quick damage output but beware of the phase change at around 75% health where he clangs his two great swords and slams them into the ground in front of him, this is another short window for 1 or 2 more attacks before he pulls them out and swing back into the ground doing a gravity magic attack that pulls in and stuns everyone around before doing another attack that deals a heavy amount of damage. Phase 1.5: 75% - 50% During this phase he gains a few new ranged attacks but it is overall the same as the first phase, some NPC's may die but they can be re-summoned mid battle after a short cooldown, just be wary of his rush attacks and continue to do damage in small intervals while occasionally running away to heal on horse back. Phase 2: 50% - 0% During phase 2 (final phase) he will leap into the air and seem to vanish, which gives a small window to heal and re-summon any fallen allies. But be careful, you need to watch the sky because he will come crashing back into the arena in a fiery ball like a meteor. This can be avoided on horseback but if hit you will most likely be instantly killed. When he lands he will have 4 boulders that will rise up and surround him, which will shoot towards you at very high speed and will instakill if you are not using a heavy shield. These fire right before he uses his drill attack. The rest of the fight you should only be re-summoning NPC's as it is too risky to fight face-to-face. Many of his hits will do very heavy damage; you should only go for hits if you feel you have a chance. He has 3 different AoE attack to watch for: Gravitas Pull has a massive range around him that will pull you right towards him (it can be dodged), with Gravitas Wave he'll jump up into the air with his blades in a X shape and when he hits the ground a massive wave of energy will be fired in a cone that will knock you down (it can be rolled through and jumped over on horseback), and with Drill Blades he'll rise into the air and spin towards you at high speed dealing heavy damage (it can be rolled though with good timing). Magic and Ranged UsersRock Sling with the Meteorite Staff is a viable strategy, 3-4 shots can bring Radahn to his knees. Beware of his impressive range, Radahn can close any distance between him and you in seconds. Keeping him at the very edge of your range is a crucial part of fighting him. As long as there are NPC to distract him, the fight is not too hard. Loretta's Greatbow can also be very effective while on horseback, although it does take much longer to cast. Magic Glintblade is a safer, faster alternative, but be wary that overzealous casting can trap you in your casting animation, leaving you easy prey for Radahn. It is recommended to avoid using Thops' Barrier. It will reduce the damage of certain magical attacks, but will still force the player prone after the attack, leading to Radahn almost definitely killing the player anyways. Thops' Barrier will not work what-so-ever on the arrows, and his multi-Gravitas will deal less damage but leave the player prone. It is currently unknown if Thops' Barrier has any effect on Radahn's quad-Rock Sling attack. Alternative StrategiesRotten Breath: Two fully charged casts of Rotten Breath will drain 100% of Radahn's HP, he is extremely vulnerable to this incantation. Use Torrent since it can be cast on horseback. The tricky part is timing it properly so that the cloud makes full contact and doesn't miss. The best opening is when he pauses, either during an animation or after finishing his combo, and is about to be hit by a summon. Time your cast to make contact just after he gets hit by a summon, this causes him to focus the summon and not you. Once the full cast hits, you'll know he's rotted by the HP bar ticking down and seeing the brown cloud. The rot persists through his phase change, so wait for it to run out entirely before casting again. Using Godrick's Great Rune and Two Fingers Heirloom gives all classes the proper stats. One fully charged cast of Rotten Breath costs 104 FP so be sure to have the necessary FP. Horseback cheese: Radahn is a unique shardbearer boss for two reasons. One, allies from the festival can be summoned an unlimited number of times. Two, Torrent can be used in the arena. These mechanics can be cheesed to make this fight relatively easy. Radahn has a high number of melee and AoE strikes, but not many ranged attacks. By using summons to keep him busy, you can ride around hitting him with projectiles causing poison, bleed, or other ailments to chunk down his HP. If you keep a safe distance and watch your recovery time, it's possible to avoid all his attacks by sprinting. As your allies get killed off, find their signs to resummon them. Their signs will typically appear on the peaks of the sand dunes. So long as you keep summoning and remain at a distance, you shouldn't have much trouble with this fight. Rinse and repeat the process until he eventually dies. Starscourge Radahn Attacks & CountersAttackDescriptionCounterGravity ArrowWhile at a long range, Radahn will charge his arrows with gravity magic, before firing it. The arrow itself home onto you, and can deal enough damage to knock you off of Torrent. He will usually target the player with this attack.Dodge accordingly. You can use the terrain or obstacles to block the arrows if needed.Radahn's RainWhile at a long range, Radahn will draw back his bow and fire into the air, causing arrows to rain down from the sky, which track the player down.Get onto Torrent and run perpendicular to him.Scattering ShotRadahn will draw his bow and fire a large spread of arrows. This attack is quite inaccurate, but can hit multiple targets.Dodge as needed. You can use the terrain or obstacles to block the arrows if needed.Savage Slams and SweepsRadahn will sometimes attack with semi random sweeps and slams. Most of the time these will be isolated, but he can chain them together up to (typically) a chain of 4.These attacks are slow and predictable. Dodge them in isolation. If he chains 2 slams together, it means he will chain 2 more after. If you notice this, dodge towards him. You are safe under him until he finishes the chain. Get a few free hits in and dodge away when his chain is done.Double SlamRadahn will jump with both blades above his head and slam them down together.His attack down is faster than expected. It is better to dodge early rather than later. This heavy attack can do heavy damage since you will be hit by both blades. You can either dodge away freely or can dodge towards him for extra damage. It will take Radahn some time to recover from this attack.Dive AttackRadahn roars with his blades at his side. He then dives forward, swinging twice slowly, then 3 times in quick succession and ending with a ground sweep.Dodge the first slam early and the second slam late. Dodge his next 3 attacks in a similar manner. The sweep can be avoided by rolling or by being too close to Radahn. Cragblade (Phase 1.5) Radahn will move to stand in front of you and clash his blades together. After he will slam straight down and burry his blades in the ground. Gravity will start to surge through his body and blades. When he pulls his blades out of the ground, they will be covered with rocks, causing them to deal extra damage. He will then gain a few new moves after this.Use this opportunity to hit him a few times or heal. He will usually do Starcaller Cry immediately after this transition.Starcaller Cry Radahn will cross his swords and release a mighty roar, causing everything around him to be pulled in, similar to Gravitas. He may also do a follow-up, where he slams his swords down in front of him, causing an explosion.Riding on Torrent will either knock you down, or simply deal damage. If you do get pulled in, make sure to immediately get behind him to avoid the follow-up attack.Cross DiveOnly after phase 1.5, Radahn will run away roaring on his horse. He will turn to face you and charge with both his blades crossed in front of him. When he gets close he will jump up and dive down quickly. A gravity wave will irrupt from him. After phase 2, if he has his meteors up, he will send those to attack-Gravity WavesOnly after phase 1.5, Radahn will charge his attacks with gravity magic. At the end of attack chains when he does this, he will send out a wave of gravity magic. He will do this on 3 different attacks. As the last part of his cross dive, as the final sweep of his dive attack, and as a stand alone attack where he digs into the earth before sending the waveAfter phase 1.5, you need to be less greedy and watch for this. It can be deadly if too close but easy to dodge when far enough away. If possible, get onto Torrent and double jump over the wave. Otherwise, it is easier to jump over instead of dodging through it.Collapsing StarsOnly after phase 1.5, Radahn will slam his swords on the ground, sending out a pulse of gravity magic around himself in a dome. Multiple gravity orbs will then appear. After a short delay, they will start flying towards you. If they hit, they will drag you closer to Radahn.Dodge as needed or run perpendicular to him on Torrent. Getting hit by even one can cause you to get hit by the rest, which will also bring you closer to Radahn, giving him an opportunity to hit you with melee. If you are on foot, just dodge to the sides.Meteor Crash(Phase 2)Radahn slams his swords on the ground, before leaping into the air. After a delay, Radahn will fly back into the arena, crashing back to the ground in a glorious explosion. Radahn will use this move when transitioning into phase 2, and every three minutes after that.Heal up as needed. You have a long time here. When you hear the roaring of his flames, look for him. He tends to be in the direction you were facing when he jumped. Ride Torrent perpendicular as soon as the sky goes red and you see Radahn entering the arena. This will likely kill any NPCs remaining, so make sure to go out of your way to re-summon them.Meteor SummonOnly after phase 2. Radahn will slam both blades into the ground. After some build up, he will pull his blades out of the ground and 4 meteors will be flying around him. He may release these to fly at his target at any time.Be prepared to dodge once the meteors are released. They will curved in an arc to catch you. Getting off of Torrent and dodging them can help.Spiralling DeathOnly after phase 2, Radahn will quickly move back and hover in the air. He will then begin spinning like a drill while charging at his targets twice in a row.Dodge to the sides or use Torrent and run away. Starscourge Radahn Lore, Notes & Other Trivia
Festival MechanicCollecting one half of the Dectus Medallion and meeting Alexander will trigger the Radahn Festival. Due to the nature and premise of the fight, the encounter allows you to summon a greater number of NPCs than normally possible to aid you. The maximum amount of NPC summons allowed for the fight appears to be 6, as summoning a 6th will make the straggler(s) signs unavailable for a while. If any of the allies fall in battle, you can resummon them after a 25 second delay. Each of the ten banners scattered across the arena has a set pool of summon signs specific to the festival attendees that can spawn under it, and each summon sign is only available once, meaning there is a finite number of summons the player can perform. That being said, it is entirely possible for the summons to defeat Radhan with no help from the player, other than resummoning them, and maybe coaxing Theodora close to Rahdan so she actually attacks him. If you travel too far from Radahn, the summons will return to their world and their summon signs will not reappear. The list of summonable cooperators:
Starscourge Radahn Image Gallery
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