Ultima Core

Ultima Core is a material used in the creation of Ultima Weapons.

Currently 10 Ultima Cores can be obtained per player, limiting the amount of Ultima Weapons that can be crafted.

Usage

Use	Amount
Upgrade Rusted Weapon to Atma Weapon	1

Obtain

• Host and defeat Ultimate Bahamut (Normal) for the first time.
• Host and defeat Ultimate Bahamut (Impossible) for the first time.
• Treasure shop (20× Ultima Unit each, 3 available).
• Pride of the Ascendant Shop (1× Cloud Commendation each, 2 available).
• Complete all Initiate Echelon tasks in Sierokarte's Knickknack Academy
• Reward from Anniversary Events.
  • What Makes the Sky Blue III: 000
  • Heart of the Sun

Notes

• Ultima Core is reobtained when reducing Atma and Ultima Weapons.
  • Three such cores are only possible to obtain by reducing the Atma and Ultima Weapon earned through the side-story What Makes the Sky Blue III: 000, the 2024 anniversary event Heart of the Sun, and Sierokarte's Knickknack Academy.