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Craft Solemn Lament in Lineage Piece fast. Get every material, dungeon key, and boss location in one complete guide.
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Solemn Lament is a new weapon added to Lineage Piece on Roblox, themed around Yi Sang from Project Moon. Unlike most powerful weapons in the game, you do not need to farm a single open-world boss to get the core materials. Every piece comes from dungeon runs, a crafting station, and a specific NPC on Frostborn Island. That said, the material list is long and the drop rates are unforgiving, so knowing exactly what to farm before you start saves a lot of wasted runs.
Head to Frostborn Island and find the Yi Sang NPC. Interacting with him opens the crafting menu and shows you the full list of requirements. Have everything ready before you talk to him, because you will need all of the following:
| Material | Amount Required |
|---|---|
| Grief for the Dead | x1 |
| Lament for the Living | x1 |
| Fusion Core | x5 |
| Soulweaver Butterfly | x100 |
| Boss's Soul | x250 |
| Coins | 30,000,000 |
| Gems | 45,000 |
The two named parts, Grief for the Dead and Lament for the Living, are the gun parts you assemble from dungeon boss drops. There are six gun parts in total across six separate dungeons, three black and three white, and they all feed into the final weapon.
Yi Sang NPC on Frostborn Island
Soulweaver Butterflies drop from mobs that have the Butterfly mutation active. Mutations apply randomly when mobs respawn, visually changing their appearance. When you spot a mob with the Butterfly mutation, kill it for a chance at the drop. You can also obtain Soulweaver Butterflies from the new dungeon added alongside this update on Frostborn Island.
Since mutations are random on respawn, the most efficient approach is to stay in a high-density mob area and keep clearing. Do not skip mobs just because they look normal. Mutation status changes each respawn cycle, so the same mob can become a Butterfly mutation source on the next wave.
Butterfly mutation mob in the wild
Fusion Core can either be purchased from the Angela Shop NPC on Frostborn Island or crafted at the crafting station. You need five Fusion Cores total for Solemn Lament.
If you prefer to craft them yourself, here is what each one costs:
| Crafting Material | Amount Per Fusion Core |
|---|---|
| Boss's Soul | x20 |
| Soulweaver Butterfly | x100 |
Buying from Angela is faster if you have the coins. Crafting is the better route if you are already deep into mob farming and sitting on stockpiles of Boss's Souls and Butterflies. Either way, five Fusion Cores means you need 100 Boss's Souls and 500 Soulweaver Butterflies if you are crafting all of them, on top of the base requirements for the weapon itself. Plan accordingly.
This is where most players hit a wall. You need three Black Gun Parts and three White Gun Parts, all dropping at 9.3% from specific dungeon bosses. That rate means you should expect anywhere from 10 to 30+ runs per part on bad luck. Farm the dungeon key before each run so you are never sitting idle between attempts.
| Part | Boss | Dungeon | Key Source |
|---|---|---|---|
| Black Gun Part 1 | Shadow Boss (Wave 10) | Cid Dungeon | Cid Key from bandits on Starter Island |
| Black Gun Part 2 | Saber Alter Boss | Ryuudo Cave Dungeon | Ryuudo Key from the Saber Boss |
| Black Gun Part 3 | Monarch Sung Jinwoo Boss | Cartenon Temple | Cartenon Key from the Sung Jinwoo Boss |
| Part | Boss | Dungeon | Key Source |
|---|---|---|---|
| White Gun Part 1 | Raiden Ei Boss (Wave 5) | Plane of Euthymia Dungeon | Shrine Key from Snow Bandits |
| White Gun Part 2 | Aizen Boss | World Boss | Talk to the Aizen Summoner NPC on Hueco Mundo Island |
| White Gun Part 3 | Miya B Boss | Miya B Dungeon | Absolute Ether Key from the banner in Lineage Town |
After testing all six dungeons back to back, the Cid Dungeon and Ryuudo Cave tend to have the fastest run times, making them the least painful Black Gun Part farms. Cartenon Temple runs longer, so save that for when you have a solid stock of Cartenon Keys.
Black Gun Part boss drop screen
Yi Sang is located on Frostborn Island, in the same area as the Angela Shop NPC. Both NPCs sit close together, so once you reach the island you will find them without much searching. Interact with Yi Sang to open the crafting interface and check your material progress at any point during your farm.
If you enjoy grinding out powerful items in Roblox anime games, check out the Lineage Piece codes for July 2026 to grab free Rerolls and coins that make this farm noticeably less painful. For players working across similar titles, the Bizarre Lineage Edicts guide covering Soul Calibre and Dark Determination is worth reading if you want to understand how upgrade systems work in the same genre.
For more Roblox farming guides covering everything from boss mechanics to rare item drops, browse the full Roblox strategy guides collection on GAMES.GG.
