How to get all the boss weapons & exchange them in Lies of P
Any player wanting to know all Lies of P boss weapons and how to exchange them can find the answers right here - also telling you all stats and where to go.
The further you get in Lies of P, the more boss weapons you'll have the opportunity to exchange for. Although it's not certain at first what to do with the Rare Ergo you obtain after every boss battle, you'll soon come across a certain merchant whom you can exchange each one with for a powerful weapon or amulet.
Without further ado, so you can bolster your arsenal as much as possible in the game, let's dive right into all Lies of P boss weapons and how to exchange them.
Boss weapons in Lies of P
Once you have access after finding Alidoro, the Lies of P boss weapons you'll be able to exchange for after beating their equivalent boss, with full details confirmed by the Lies of P wiki, are as follows:
| Boss weapon | Boss to defeat to unlock | Physical Attack | Weapon type | Scaling | Fable Art 1 | Fable Art 2 |
| Seven-Coil Spring Sword | Parade Master | 129 | Greatsword | Motivity - B, Technique - C | Seven Explosions: "A strong downward blow. When you cut downward, multiple explosions deal damage to the enemies in front of you." | Guard Parry: "Time the enemy's attack correctly to deflect it and trigger a powerful attack." |
| Etiquette | Scrapped Watchman | 80 | Dagger | Motivity - D, Technique - A | Single Stab: "Gather your strength for a forward piercing attack". | Absolute Counterattack: "Perfectly block the enemy's attack temporarily. Right after a successful Guard, use Fable Arts to trigger an extra attack." |
| Holy Sword of the Ark | King’s Flame Fuoco | 140 | Greatsword | Motivity - B, Technique - C | Patient Smash: "Gather your strength for a strong hit. Hold down the attack button to activate a stronger attack." | Alter: "Transforms the length of the handle. After transforming, Stamina consumption is reduced temporarily." |
| Trident of the Covenant | Fallen Bishop Andreus | 115 | Blunt | Motivity - C, Technique - B | Link Rush Stab: "Rush forward and stab. Uses an extra Fable slot to jump in place and deliver a powerful downward strike." | Guard Parry: "Time the enemy's attack correctly to deflect it and trigger a powerful attack." |
| Puppet Ripper | King of Puppets | 132 | Sword | Motivity - C, Technique - B | Quick Upward Slash: "A quick upward slash." | Storm Spinning Slash: "Spin multiple times and attack a wide range." |
| Frozen Feast | Champion Victor | 167 | Greatsword | Motivity - B, Technique - C | Liberate: "Instantly release your weapon. Increases ATK Speed temporarily." | Single Slash: "Gather your strength for a big forward slash." |
| Two Dragons Sword | Puppet-Devouring Green Monster | 107 | Sword | Motivity - D, Technique - A | Link Emergency Dodge: "Dodge quickly forward. Uses an extra Fable slot to perform up to 2 attacks." | Wind of Swords: "Blow a wind of swords forward. Deals AoE damage to enemies in front of you." |
| Uroboros’ Eye | Laxasia the Complete | 124 | Sword | Motivity - C, Technique - B | Wandering Moon: "Throws the weapon forward. The weapon stays in one spot for a certain time, deals damage, and returns." | Storm Notice: "akes the blade idle for a moment. When attacking enemies, increases hit number and damage." |
| Noblesse Oblige | Simon Manus | 153 | Large Blunt | Motivity - A, Technique - D | Ergo Release: "A downward blow. Consume a set amount of Ergo to deal big damage to enemies." | Endure: "Allows you to temporarily withstand the enemy's attack." |
| Boss weapon | Boss to defeat to unlock |
Physical Attack | Weapon type | Scaling | Fable Art 1 | Fable Art 2 |
| Proof of Humanity | Nameless Puppet | 100 | Sword | Motivity - B, Technique - b | Link Slash: "Slash an enemy in front of you. Uses an extra Fable slot to slash up to 3 more times." | Grind: "Increases Critical Hit Chance temporarily." |
- If you're a PC player, you should check out how to fix your Lies of P controller not working
Boss amulets in Lies of P
If any of the boss weapons in exchange for the Rare Ergo of its defeated boss doesn't take your fancy, you can also trade each Ergo for a particular amulet instead - each with their own powerful effect when equipped.
For example, instead of exchanging the King's Flame Ergo (the reward for beating the King’s Flame Fuoco boss) for Holy Sword of the Ark, you can trade it for the Conquering Amulet instead.
All boss amulets you'll be able to exchange for after beating each boss in Lies of P are as follows:
| Boss amulet | Boss to defeat to unlock | Weight | Effect |
| Dancing One’s Amulet | Parade Master | 19.6 | "Enables dodging even with low Stamina." |
| Extreme Modification Amulet | Scrapped Watchman | 12.1 | "Increases Weapon ATK in proportion to number of Fable slots." |
| Conquering Amulet | King’s Flame Fuoco | 12.8 | "Upon a successful Perfect Guard, temporarily increases damage inflicted by weapon attack." |
| Nameless One’s Amulet | Fallen Bishop Andreus | 10.7 | "Has a chance of none being consumed when using Pulse Cells." |
| Triumvirate Amulet | King of Puppets | 9.7 | "All Legion Arms' ability tier +1." |
| Arm of God Amulet | Champion Victor | 12.2 | "Temporarily increases physical damage upon a successful attack." |
| Ghost Walk Amulet | Puppet-Devouring Green Monster | 21.9 | "Fury Attack Dodge available." |
| Impregnable Fortress Amulet | Laxasia the Complete | 10.2 | "Upon a successful Guard, Weapon Durability is not consumed." |
| Awakened God’s Amulet | Simon Manus | 11.2 | "Increases Fable Arts damage inflicted on a Staggered enemy." |
| Boss amulet | Boss to defeat to unlock | Weight | Effect |
| Piercing Hatred Amulet |
Nameless Puppet |
21.1 | "Immunity to all attribute status ailments." |
- Take a look at where to take the Faded Whistle in Lies of P
How to exchange boss weapons in Lies of P
To exchange boss weapons in Lies of P, you need to speak Alidoro, who you will first find in the St. Frangelico Cathedral Library, the game's fourth area, by taking the lift to the upper outdoor terrace.
Once you’ve spoken to him and told him about the safe space in Hotel Krat, he will head there and you can speak to him in the lobby of the hotel near Antonia. Alternatively, you can lie and tell him about Venigni Works instead - where you can later find him by the Workshop Union Entrance stargazer.
As demonstrated above, each unique Rare Ergo dropped by the boss gives you two options to choose from, but you can only pick one. If you miss out on a reward, you can get it again in New Game Plus. Boss weapons cannot be disassembled, so you can only use them as they are and use the skills they come with. Keep this in mind when you are making your choice.
That’s everything you need to know about boss weapons in Lies of P.
For more guides on Lies of P, make sure to keep reading GGRecon. Better yet, you should check out our guide on how to find all of the Trinity Sanctum Rooms in Lies of P.
About The Author
Amy Eastland
Amy was a Guides Writer for GGRecon. She has a BA (Hons) in Creative Writing and Journalism, and has previously worked for companies such as Gfinity and HITC. Her favourite games include Dark Souls 3, Elden Ring, and Crash Bandicoot Warped. When she's not at work, she's hanging out with her black cat, Shelby.
