Obsidian Greatsword
Obsidian Greatsword+5

physical damage dark souls 480 critical dark souls 100
magic damage dark souls - stability dark souls 38
fire damage dark souls - durability dark souls 350
lightning damage dark souls - weight dark souls 8.0
Requirements & Bonus
strength dark souls dexterity dark souls intelligence dark souls faith dark souls
20 16
Weapon Type Greatsword
Attack Type Regular
Enchantable Yes
Special Yes
 

Obsidian Greatsword is a Weapon in Dark Souls and Dark Souls Remastered. (AotA only)

 

This greataxe, one of the rare dragon weapons, is formed by the tail of the one-eyed black dragon Kalameet, the last of the ancient dragons. The mystical power of its obsidian blade will be released when held with both hands."

 

How to Get / Where to Find the Obsidian Greatsword

  • Obtained by cutting off the tail of Black Dragon Kalameet. This is difficult to do, as the opportunities to strike the tail without ranged weapons are short and infrequent without the help of phantoms.

 

Notes:

  • Can be given to Kingseeker Frampt to receive 100 Souls.
  • Obsidian Greatsword can be upgraded by using Dragon Scales.
  • Two-handed heavy R2 attack creates black flames over a 360-degree Area of Effect around the user. These flames deal Physical and Magic damage, and not Fire damage. The flames inflict significant poise damage and almost always stagger targets, including bosses. For this reason, the sword can be used very effectively against Artorias the Abysswalker, among others, notably during the long windup to his charge attacks. 
  • This strong two-handed R2 attack consumes 50 weapon durability when cast. You can use this attack 7 times until this weapon's durability drops to 0 points and it breaks.
  • Only 14 Strength is required to use this sword if held in both hands.
  • Despite being referred to as a Greataxe in-game, this weapon is classified as Greatsword.
  • This sword can also be buffed. Buffing it also increases the damage dealt by the special R2 attack, dealing an appropriate amount of damage of the type determined by the buff. For example casting Miracle: Sunlight Blade and then using the two-handed R2 not only causes it to deal more damage, but to deal that extra damage as Lightning elemental damage.

 

Youtube relevant videos:

  • N/A

 

Obsidian Greatsword Upgrade Table

Dragon Upgrades may be performed by any Blacksmith, as long as you have the required materials.
To reach max, you need: 50,000 souls and 10 dragon scale dark souls s Dragon Scales.

  Attack Values Parameter Bonus Auxiliary Damage Reduction (%) Stability
Obsidian Greatsword physical damage dark souls magic damage dark souls fire damage dark souls lightning damage dark souls strength dark souls dexterity dark souls intelligence dark souls faith dark souls divine dark souls occult dark souls physical defense dark souls magic defense dark souls fire defense dark souls lightning defense dark souls stability dark souls
Regular 320 - - - - - - - - - 60 10 40 40 38
Regular +1 (dragon scale dark souls sx1) 352 - - - - - - - - - 60 10 40 40 38
Regular +2 (dragon scale dark souls sx1) 384 - - - - - - - - - 60 10 40 40 38
Regular +3 (dragon scale dark souls sx2) 416 - - - - - - - - - 60 10 40 40 38
Regular +4 (dragon scale dark souls sx2) 448 - - - - - - - - - 60 10 40 40 38
Regular +5 (dragon scale dark souls sx4) 480 - - - - - - - - - 60 10 40 40 38



Tired of anon posting? Register!
    • Anonymous

      I'm scrolling through the weapon lists because I'm a lunatic that likes crafting builds and I noticed the weapon description quote says 'greataxe' instead of 'greatsword'.

      • Anonymous

        At minimum stats the AR is good, but chaos infusions can also offer incredible AR with low stats. Nice that it's buffable, but it's main feature is probably the R2 weapon art. Be warned that it's quite slow, and in PvP you'll be backstab bait unless you set up the R2 by scoring a knockdown first.

        Still, if a Crimson Dragon God materializes and gifts you this early in your playthrough, you might want to use it.

        • Anonymous

          i remember being forced to let kalameet kill me because i got him to almost no health but there was no way i was cutting off his tail without him dying and this not dropping, fun!

          • Anonymous

            Just bait his fly swooping attack. Dont dodge, run to the side to avoid the damage and run to the end of the tail right after. High chance he would do the tail slam attack, which can also be avoided by strafing left or right. Remember, DONT DODGE, JUST RUN to maximize the window for positioning and cutting

            • Anonymous

              Cutting off Kalameet’s tail isn’t a difficult task, it just requires a lot of patience. You basically have to stand in front of him the whole time until he eventually decides to do the attack where he sits up on his hind legs and breathes fire. Use a weapon that has good range on its running attacks, like a greatsword or a halberd. Repeat 3 to 4 times and boom.

              • Anonymous

                Hardest to get and best of all dragon weapons. Wait what? But sir there are others with better damage! Yes there are and they require sh!tload of STR to use. This can be wielded by low level character and still do crazy ammounts damage. But real power comes when we pair it with weapon buffs and then unleash aoe attack. Twinks with this baby are far more dangerous than darkbead invaders.

                • Anonymous

                  Ok, after reading these comments and watching a YouTube vid, I have a pretty painless way of cutting the tail in 2 hits. But it took a specific weapon/pyromancy/build. Specifically:

                  Str 16, Dex 40, Gargoyle's Halberd +15, pyromancy Power Within.

                  Just bait the flying swoop, roll left to dodge it, then roll right under the tail (takes timing), the tail slams down. If you do it right you can get 2 two handed L1 hits on the tail. That's all it takes with this build. I did it in three tries. Hope this is useful.

                  • Anonymous

                    not many people are talking about the wep itself (understandable) but it's like a raw claymore or something from the later games but better, probably the best dragon weapon considering that 14/16 minimum for a flat 480 physical damage and no scaling is great for spell buff builds that don't want to invest into str/dex too much. you also get a unique special attack that doesnt consume too much durability and is influenced by buffs

                    holy **** though killing him is easier than getting that ****ing tail

                    • Anonymous

                      I love this babe, though I usually sacrifice the buff part to keep it's aesthetics. It's nice that it actually looks like a tail, instead of an ornamental blade like the Moonlight (which makes no sense). Also the shades of blue are sick.

                      • Anonymous

                        This bastard never dropped his tail within hitting distance once. I tried to chop his ass in hopes that might work instead but it didn't work and now he's dead.

                        • Anonymous

                          Guys, I've found a way to make it easy to cut Kalameet's tail. Lure him into flying towards you, roll to the side and stand behind him; he will lift his tail and slam it down, dodge it and then start hitting it

                          • Anonymous

                            One of the only 3 "tail cut weapons" that's actually good. The other 2 being the MLGS and Pricilla's dagger.

                            • Anonymous

                              **** this dragon. He's not hard himself, just holds this stupid sword hostage. If you want it, you have to keep him alive until you get it.

                              I can toss in a few more tips for those who are still struggling. Hopefully this doesn't get buried too far down.

                              First, ignore the dipshits who are going on about how getting this was 'SOOOO EASY'. RNG plays a big part in Kalameet exposing his tail to you. You've no doubt read up on how you got to bait him into attacking in a manner that will lower his tail, and there's two strategies to do this. The first, and less common one was to hover under his head and to bait out his fire breathing. This is where he stands on his back legs and breaths down onto you, and you use this opportunity to run behind him and jump on his lowered tail. I didn't find this method too reliable, first rolling to dodge the fire meant that you had little time to run behind, and second, RNG again. Kalameet has many attacks that can be triggered rather than this one, and several can be incredibly damaging.

                              The second method, which is the more commonly referred to one, is where you remain a distance in front of him in order to bait out his aerial dive. Roll to the side, roll back over, and immediately bait out a tail slam, exposing his tail, which is what I used to get this stupid sword.

                              Now this is the important part, which if you're fed up with this ****, you're probably here for...

                              A) If you're slow on dodging to the side for his aerial dive, you won't be able to dodge back on time to bait out the tail slam. I found that if I rolled right before he was about to hit me, once I got back into position, he either spun himself around to face me, or he used some tail sweep instead. I found better success at getting him to trigger the tail slam if I rolled early. Not as he's raising himself in the air, but as he starts moving towards you. Kalameet has little control over this dive once he gets going, and once you dodge aside, then dodge back, you will usually be directly behind him once he lands, putting you perfectly in place to trigger his tail slam.

                              Keep in mind though, RNG still plays a large factor, so you may have to be patient still. I know, he ****ing sucks.

                              B) I want you to imagine you're directly behind Kalameet right now. He's not moving, and you're immediately at his 6 o'clock. Now I want you to imagine another you, standing to the left of you. Now I want you to imagine a second you, standing immediately to the left of that first other you. Keeping up? When Kalameet does his tail slam, he's going to hit that you that's two to the left of you. His tail lands a little to the left. That means when you try to dodge him, if you roll to the left, you'll likely get hit. On the other hand, if you roll to the right, you may find yourself too far away to get any significant damage on the tail. Maybe if you're quick, you'll get a swipe, but I found the best thing to do was to just hold my shield up and blocking... and thinking about it as I type this, I don't actually recall getting hit by it.

                              Hmm... You're probably pissed though, so just keep your shield up in case.

                              I usually use a simple Crest Shield because I'm light weight and I like its 100 block with good magic defense, but I definitely switched to the Eagle Shield for this fight. Went out of my way to quickly upgrade it from 0 to +13. It's all I had in titanite. The Crest Shield didn't stop **** because the stamina drain was too much. I could block much of Manus with it, but Kalameet seems to have more punch. The Eagle Shield only has 95, but that's way less damage with a Crest Shield that doesn't block ****.

                              C) As for other attacks he does. The direct flame attack has stupid range and will likely hit you even if you're too far to lock on, it's best to just roll left or right. He's got an attack where he breaths fire from right to left, but it's best to just leave range. You want to be far from him anyways, and I found that once I was too far to lock onto him, he couldn't hit me with this attack (and it's a great time to pop a heal if you need it). Then there's his lunge, which was just best to roll back on. You can block it with an Eagle Shield, but I find that when he DOES do this, he's going to be in a range where he can hit you with it, and if he get's that hit off, it's going to do a good chunk of damage.

                              Those three there are the only other attacks he seems to do when you're trying to bait out the dive over baiting out his fire. Much easier surviving that.

                              I think that's about it. The only other tip I think I could give is to upgrade the Oolacile township bonfire to 20 flasks. It should be that anyways because it's the best one to run to Manus to. And once you get the sword, quickly toss on your silver serpent ring for bonus souls. That ****er lost his hostage, make him regret letting you learn his moveset so thoroughly.

                              • Anonymous

                                Fits in almost perfectly with my caster build, only downside is the stat requirement but that can be circumvented by simple soul-duping.

                                • Anonymous

                                  Its not hard any more i wear Havale set and moss stone shield+5 and black Knight halberd+5 and 20 flasks JUST THIS too easy

                                  • Anonymous

                                    The fact, that this weapon is buffable makes the Sword so much better. One of my favorite weapons. If you know how to fight Kalameet to get this weapon, than this is your recommended choice

                                    • Anonymous

                                      It's really not that bad. Seriously. Stay under his head and fish for his attack where he stands on his hindlegs and breathes fire close to you. At that moment, run behind him and hack away. Be careful not to confuse it with the red calamity attack. He stands on his hindlegs in both attacks.

                                      • Anonymous

                                        I totally just got his tail on second try… this dude is a chump lol. I was scared of him too. Just stand back and wait for him to fly at you, dodge, run towards his butt, back up when he slams his tail then run up and two hand swing your weapon (if going that route… easy as pie) boom, takes a few times. But that’s it. He’s just a dodge fest

                                        • Anonymous

                                          Put this baby on a faith build with min stat and dmb/slb. Press R2, watch the backstab fisher disappear in a sec

                                          • Anonymous

                                            In regards of cutting kalameet's tail, it depends on the weapon you use for it. From perdonal experience, black knight glaive can sever it's tail in less than 5 minutes. Should be easier with other polearms or ultra gs with vertical strikes.

                                            As for the special attack, kalameet dealt physical and magic instead of fire. If this flame were exactly the same, great/crystal magic weapon would be nuts to boost the AoE's inherent damage.

                                            • Anonymous

                                              Not really too difficult to obtain, did it at my second attempt after learning about its existence (I was killed at least 8 times before trying to simply defeating him). Using Gravelord Sword It took me 3 swipes in diferent moments. You just have to be very pacient in this combat, and when he does his glide charge attack make sure to place you behind him. He would use his tail stomp, get the timing right to dodge it and you will have like a 3 seconds window to slam his tail (just 1 hit allowed I think). With Gravelord sword it took me 3 hits to cut it, then I killed him. Really satisfying and challenging boss.

                                              • Anonymous

                                                After 5 straight hours, probably over 100 attempts I gave up on getting this mfrs tail. I'm not the guy who wants the Knights Honour achivement, I just want it for the use of owing it but this boss is probably the worst in the game. I'll take Seath over this ******* any day of the week. F*uck this boss honestly

                                                • Anonymous

                                                  Cutting the tail - 20 flasks. Killing kalameet - 1/3 of HP bar. I would much prefer if getting tail was easier and boss itself was harder. On top of that obsidian tail is most useful for twinks which is a problem by iteslf.

                                                  • Anonymous

                                                    It's a great weapon for sorcerers, but also one of the hardest to get for sorcerers. Good luck freeaiming those crystal soul spears my friends

                                                    • Anonymous

                                                      Getting his tail is the ultimate test of patience. I managed to get it and kill him in same try. This fight took like 10 minutes. It took me like 10 or 15 tries to learn his patterns well and after that it was fairly "easy". U need to bait him to do his fly and rush you kind of attack by staying in mid distance from him, roll left, then when he passes you you roll right and then he slams his tail to the ground. U can then hit it once with zweihänder r2, takes 2 hits with zwei+15.

                                                      Rywin

                                                      • Anonymous

                                                        This is a great weapon for int or faith builds, it doesn't scale with anythings, only need 14 Str to 2H (that you probably already have for MLS) and has a huge base damage and can be buffed with Crystal weapon or Sunlight blade for about ~950 AR, its base damage does more damage than MLS on most enemies. The only problem is that you get it only in very later game and is a pain to get it.

                                                        • Anonymous

                                                          Solo, I find the easiest way to get this is to fight with your BACK to a wall. Keep dodging his attacks and wait for his lunging flame sweep attack. Since you next to the wall he won't go very far giving you TONS of time to go around and hit his tail. The breath part of this attack is also ridiculously easy to dodge at close range. This method is much more consistent. In 3 days of fighting him I only got him to do the tail slam once.

                                                          • Anonymous

                                                            Soo much hate for mh in the comments , the past mh games were definitely on par if not more difficult than souls series not including sekiro but 5th gen mh are easy af compared to souls' but then there is ds3 where you can roll for days

                                                            • Anonymous

                                                              Hitting the tail after the tail attack is the most long way... You can just hit it when he uses the red energy grab or the flame spit in the same position of the grab. They are not rare attacks, you can gust stand in front of him and wait for him to stand up on the posterior legs and rush to the tail.

                                                              • Thank god the demons greataxe cut off his tail in one hit I don’t find kalameet to really be that hard personally but I died so many times sprinting around his backside to get to his tail before losing track of him as the camera got stuck in his gut

                                                                • Anonymous

                                                                  weapon name = Obsidian greatsword
                                                                  description = This GREAT AXE one of the rare...
                                                                  hmmm strange maybe its both any clue?

                                                                  • Anonymous

                                                                    After dying countless times trying to even get a shot at this bastards tail, I finally realized that it was futile and decided just to kill him so It would stop me from the madness! NO MORE DOGS!!! I attuned power within, put on my sorcery ring and that sorcery wing head dress thingy and went to town, he did his flyover and one of my crystal soul masses mysteriously hit his tail in flight and I got it! Now after 1500 hours of game play over 2 years on 2 platforms I *think* their is nothing else I to discover or accomplish in this game, but who knows. Goodluck!

                                                                    • Anonymous

                                                                      I was so excited when i finally cut that ****er's tail off, and then i noticed it had no scaling.... thank you dark souls

                                                                      • Anonymous

                                                                        Testing taking a hit from the same attack while stationary with and without the weapon equipped. It seems like I take more damage with it equipped.

                                                                        • Anonymous

                                                                          How good is this thing in endgame? I’m reading a lot of good things about it, and I’m very curious indeed.

                                                                          • Anonymous

                                                                            LMAO am I the only who cut all the monsters tail in there first walkthrough? Including this.. well, as a Monster Hunter World veteran cutting monster tails is to basic asf

                                                                            • Anonymous

                                                                              High damage when fully upgraded (unlike the dragon great sword that even at max lvl does only 200-300 damage) but still not a good weapon for bosses such as 4 kings and death

                                                                              • Anonymous

                                                                                If you are going for minimum requirements you have the stats to two-hand the gravelord sword. It’s a good choice for cutting the tail at a low level. The running attack is fast and powerful. Easiest way to cut the tail solo is to stay at a medium-far distance away from him to bait the diving attack. When he flies at you roll to the left, get behind him and position yourself directly beneath the tail. This will bait his tail slam attack allowing you to get 1-2 free hits. Remember you MUST position yourself DIRECTLY beneath the tail otherwise he will not follow up.

                                                                                • Anonymous

                                                                                  It can be obtained very late and have low requirements with no scaling. Definitely weapon for veterans to make low level character get it somehow at low level(through sheer skill or friends help)designed specifically to abuse newbies. Even its special attack is designed as newbie buster.

                                                                                  • Not so hard to get as it first seems. Especially with internet nowadays it's easy to find out but eventually one will figure how to bait the tail slam and get easy free hits.

                                                                                    • Anonymous

                                                                                      Best way to cut off the tail is to bait his tail slam when you're behind him. It stays on the ground for a second after he slams, which is an excellent opportunity to punish. Took me three tail slams until I cut it. The rest of the time it's just too damn high to hit with any melee weapon.

                                                                                      • Anonymous

                                                                                        Remastered does not list the sword as a greataxe, it is properly listed as a greatsword on the item description

                                                                                        • Anonymous

                                                                                          Full R2 is pretty underwhelming. I mean, its awesome, and cool, but half the time you'll just get backstabbed and the other half they'll roll out of it. BUT, IF YOU ARE A GOD OF LAG LIKE SOME PEOPLE I KNOW ARE, THIS THING IS GOD LEVEL, 20/3. Spam that full R2 and wait for them to go in, not realising for you it looked like you used it about 5 minutes ago as they get hit in the face by it.

                                                                                          • Anonymous

                                                                                            When using DMB + Darkmoon Talisman (rank 3) at 50 faith on this weapon, the AR is 474(.6) magic 480 physical. Go wild with your 954 damage weapon that will do more than 300 damage through your average shield.

                                                                                          Load more
                                                                                          ⇈ ⇈