Elden Ring throws no shortage of dragons at you across the Lands Between, and Ancient Dragon Lansseax is one of the nastier surprises waiting on the Altus Plateau. In this Elden Ring Ancient Dragon Lansseax Boss Guide, we’ll show you where to find her, how to gear up, and how to beat her across both of her encounters.
Elden Ring Ancient Dragon Lansseax Boss Guide
Lansseax is an optional boss, so nothing forces this fight on you. She’s still worth the detour – beating her hands you a big pile of Runes and one of the better lightning incantations in the game. You’ll run into her twice, and the two fights play out pretty differently, so treat them as separate problems rather than one long slog.
Where to Find Ancient Dragon Lansseax
Your first meeting with Lansseax happens near the Site of Grace ‘Abandoned Coffin.’ From there, head up the slope toward the capital. You’ll pass a group of Omens guarding the Ruler’s Robe armor set along the way – dodge their kicks or just ride past them on Torrent, since they’re not the fight you’re here for. Lansseax spawns near the top of this path.
The second fight starts fresh from the Site of Grace ‘Rampartside Path.’ Lansseax spawns somewhere on the open plateau nearby, and if she doesn’t show up right away, rest again and try once more. Here’s the catch: she only spawns at noon, so if you’re rolling up at the wrong time of day, pass time at the Site of Grace first.
Gear Up Before You Fight Her
Level 50+ is a reasonable target before you walk into this fight. If she’s one-shotting you through your Vigor, that’s your sign to come back later rather than force it. Lansseax is weak to Scarlet Rot, the Bleed effect, and Pierce damage, so weapons or spells that lean on those will chew through her health bar faster than raw physical hits.
If you’d rather fight from range, Rock Sling, Spiral Shard, Black Flame, and Poison Mist all do solid work here. A Boltdrake Talisman is worth equipping too – her lightning output ramps up hard in the second phase, and every bit of resistance helps. Overall, we’d put this fight around a 6 out of 10. She hits like a truck, but her patterns are learnable.
What Lansseax Throws at You
| Attack | What It Does |
|---|---|
| Lightning Glaive | Her signature move, with three versions: a vertical slam, a horizontal sweep, and a hop-back variant where she leaps away before swinging, stretching the attack’s range further than you’d expect. |
| Stomp | She raises a foot and crushes anything underneath. Dodge or ride off the moment you see the leg lift. |
| Ground Fire | A straight-line fire breath that lasts longer than most other dragons’ – get out of the lane immediately. |
| Wing Beat | A close-range knockback she only pulls out when you’re right up against her. |
| Claw Swipe | A lightning-infused claw strike. |
| Lightning Storm | She rears up, throws her wings out, and roars, scattering bolts across random points nearby. It’s not precise, but it covers a huge area – and it leaves her head wide open and easy to poise-break. |
Survive the First Encounter
Don’t overthink this one. Land a few hits and Lansseax bails once she’s roughly at half health, flying off to the second location. Use the coffins scattered around the arena for cover from her fire breath, since it burns noticeably longer here than you’re probably used to. You can also bait her into getting stuck between the coffins, which opens up free ranged damage without much risk.
Beat the Second Encounter
This is the real fight. She starts at the same health she had when she fled the first arena, and this time there’s no cover – just open ground.
Ride Torrent between her front legs, hit her belly, back legs, and tail if you can reach it, then peel out past her attack range and circle back around. Wait until she’s fully facing you before riding in, and tap sprint on the approach so her faster swings don’t catch you mid-turn. Underfoot is genuinely the safest place to be in this whole fight – her glaive and claw attacks have long reach and send lightning rushing across the ground from wherever they land, but tucked under her, most of that just doesn’t reach you.
Keep an eye out for the hop-back glaive specifically. If you’re not close when she starts winding it up, ride away immediately and jump to clear the ground lightning that follows. If you are close, she’ll hop back mid-cast anyway, so don’t assume proximity keeps you safe. When she plants herself and breathes fire in a straight line, that’s your window – ride in diagonally and get a few solid hits in while the animation plays out. Her head takes double damage when you can land it, but her aerial habits make it an unreliable target, so treat it as a bonus rather than your main plan.
Best Summon Signs to Use
Latenna the Albinauric
Summon her from a distance before you engage. She keeps up steady ranged damage the whole fight and pulls some of Lansseax’s attention off you, which buys you room to work.
Mimic Tear
Copies your own build, gear and all, so she tanks hits and deals real damage while you focus on staying alive. Solid pick if you’re already comfortable with your own loadout.
Spirit Jellyfish
Applies poison damage over time. It’s not a burst option like the other two, but it chips away at her health steadily if you’re playing a distance-heavy game.
Don’t linger directly under Lansseax for too long even with a summon out. Her area-of-effect lightning can wipe out Torrent, and once your mount’s gone, you’re next.
Reward for Beating Lansseax
Take her down and you’ll walk away with 60,000 Runes and the Lansseax’s Glaive Incantation – a sweeping red lightning attack that follows up with an area lightning wave. It’s a genuinely useful spell in both PvE and PvP, though you’ll need 40 Faith before you can cast it.
Lansseax is said to be the sister of Fortissax, another optional dragon boss you’ll find through Fia’s questline as the Lichdragon Fortissax.
FAQ
What is Ancient Dragon Lansseax?
An optional Great Enemy boss on the Altus Plateau. She’s a four-winged dragon and the sister of Fortissax.
Where is Ancient Dragon Lansseax located?
Altus Plateau, split across two fights – the first near the Abandoned Coffin Site of Grace, the second near Rampartside Path.
Can you melee Ancient Dragon Lansseax?
You can, though it’s riskier than ranged play thanks to her reach and some awkward camera angles. Sticking to her underfoot or circling her legs on Torrent keeps melee builds relatively safe.
What level should I be to fight her?
Level 50+ is a fair benchmark. If she’s one-shotting you, level up and come back.
What is Ancient Dragon Lansseax weak to?
Scarlet Rot, the Bleed effect, and Pierce damage.
How much Faith do you need to cast Lansseax’s Glaive?
40 Faith.
When does she retreat during the first encounter?
Once you’ve dealt roughly half her health in damage, she flies off to the second arena.
Is Ancient Dragon Lansseax worth fighting?
Yes. It’s about a 6 out of 10 on difficulty, and the payoff – a strong incantation plus a big Runes haul – makes it worth the trouble.
