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Preludes 15Verified 29 Jun 2026

Data sourced from wiki.avakot.org, official DevStreams, and patch notes.

Verified for Preludes 15.

Inorganic · Uncommon

Corrupt Onyx

How to Get Corrupt Onyx

Best steady route: complete Fort Curlail or Mirifuir sieges and burn the Skylantern — both list Corrupt Onyx in catalog reward pools (3h cooldown; verify yields in-client — Avakot item page has no drop table). Between sieges: loot Ode Strongboxes and Ode Chests on Midrath camp patrols, or clear Sinecure/Ode foes. Cogah Agari adds supplemental drops.

  1. Fort Curlail / Mirifuir · Complete siege & burn Skylantern (~3h cooldown)

  2. Ode / Sinecure camps · Loot Ode Strongboxes & Ode Chests each loop

  3. Eastern Midrath camps · Kill Baliq, Bisulcam & Sinecure Knights

  4. Midrath world bosses · The Cogah Elixir + Agari timers

Routes below are community-sourced — verify drop rates in-game.

Black Ode mineral for weapon upgrades and Cenotaph crafts. Best steady route: Fort Curlail or Mirifuir siege rewards (every 3h). Day-to-day supplement: Ode Strongboxes and Ode Chests on Midrath camp patrols — often paired with Ichor farming.

Corrupt Onyx · All Farm Sources

Farm reference

  • Corrupt Onyx — black Ode mineral for weapon upgrades

    Cenotaph craft needs ×15 Onyx — plan siege runs and camp patrols together.

  • Fort Curlail siege — Corrupt Onyx in Skylantern reward pool

    Rotate with Mirifuir sieges (~3h each). Also drops Crypt Keys.

  • Mirifuir siege — shared Onyx & gem reward pool

    Burn the Skylantern after clearing Conductors — see siege guides.

Primary farm: Fort Curlail / Mirifuir sieges— burn the Skylantern (~3h cooldown; Avakot reward pool). Everyday supplement: Ode Strongbox camp patrols, often with Ichor and Crypt Keys. Cenotaph needs ×15 — see Cenotaph. No merchant buy — verify drops in-game.

Route A · Best farm

Best steady route: complete Fort Curlail or Mirifuir sieges and burn the Skylantern — both list Corrupt Onyx in catalog reward pools (3h cooldown; verify yields in-client — Avakot item page has no drop table). Between sieges: loot Ode Strongboxes and Ode Chests on Midrath camp patrols, or clear Sinecure/Ode foes. Cogah Agari adds supplemental drops.

Route B · Source

Fort Curlail / Mirifuir siege — Skylantern rewards

Route C · Source

Ode Strongbox + Ode Chest — camp patrol loop

Route D · Source

Sinecure / Ode foe patrols — Baliq, Bisulcam, Knights

Route E · Source

Cogah Agari — supplemental boss pool

All sources

SourceNotes
Siege: Fort Curlail Siege · Siege of Mirifuir — Skylantern reward poolsAvakot
Container: Ode Strongbox — Ode & Sinecure campsprimary patrol farm
Container: Ode Chest — camp & dungeon routes
Other Ode & Sinecure foes — see Avakot drop table on item page

Used In

  • Cenotaph
  • ode weapon upgrades
  • high-tier weapon crafts

Inorganic comparison

Side-by-side view of items in the same category — compare rarity and primary sources.

ItemRarityPrimary sourceFarm guide
Corrupt OnyxThis pageUncommonSiege: Fort Curlail Siege · Siege of Mi…Yes
Petrified IchorRareFoe: Gruulseeker Selvins — night shrimp…Yes
Ode'n SynsylkUncommonContainer: BarrelYes
QuicksilverUncommonContainer: Basic ChestYes
SilistytUncommonFoe: Gruulseeker Selvins — night shrimp…Yes
IchorCommonContainer: Ode Strongbox — Ode & Sinecu…Yes
Ode GraphiteCommonContainer: Barrel — Ode & Sinecure campsYes
Pincer ShardCommonFoe: crustacean enemiesYes

Related guides

Next steps