How to Get Solemn Lament in Lineage Piece (Butterfly Grave)

The Weapon

Solemn Lament (Mythical) — the twin-gun mourning kit from the Limbus Company crossover update, currently the top raw-damage unlock in the game (tier list).

The Dungeon: The Butterfly Grave

Get the key from the Angela NPC, then: kill 100 enemies to unlock phases 2 and 3 of Yi Sang (1.6B HP — the biggest boss HP pool in the game). Drops: Monochrome Wood 7%, Invert Tears 5%, The Final Elegy title 3%, Solemn’s Outfit 2%. The update also added Butterflyed mob mutations and Soulweaver Butterfly drops.

The Bill (Solemn Lament NPC)

• 1 Grief for the Dead
• 1 Lament for the Living
• 5 Fusion Cores
• 100 Soulweaver Butterflies
• 250 Boss’s Souls — 1 per Legend’s Arena boss kill, so 250 arena kills minimum
• 30M coins & 45K gems — the most expensive purchase in the game

Farm Plan

The 250 Boss’s Souls double as Trial Key currency, so your artifact farm and Solemn farm share a lane. Raiden’s endgame mastery (“deal 3.5B with Solemn Lament”) assumes you finish this — it is the final boss of the game’s economy, budget accordingly.