Resource News · Official-source analysis
Ascension Cores Upgrade Masterwork and Vestige Weapons
Published from official information dated 2026-07-24; editorial status reviewed 2026-07-25.
What changed
The July 24 official preview confirms both sides of the loop: earn cores through Nightmare Crucible, then use the relevant core type at the Mystic Forge.
Confirmed details
- Engrams found around Umbral Sands provide access to Nightmare Crucible.
- Ascension Cores are the named rare activity reward.
- 0.12.1 adds the Mystic Forge upgrade function for Masterwork and Vestige weapons.
What this means for players
The new official description is more useful than treating Ascension Cores as a vague future currency. Exact drop rates and optimal farming quantities are still not confirmed, so those values should not be invented.
Player checklist
- Collect Engrams while exploring Umbral Sands.
- Keep cores until the 0.12.1 Mystic Forge recipes are visible on the installed build.
- Match the relevant core to the weapon and target tier shown by the live crafting menu.