Ultima Weapons
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Ultima Weapons are fabled weapons associated with Ultimate Bahamut. These weapons boost ATK and HP for characters that match a weapon specialty.
The first weapon stage is called Atma. Atma and Ultima weapon skills can be customized with Gauph Keys after its creation.
You must be at least rank 80 to craft these weapons. A free Atma Weapon can be obtained from the event What Makes the Sky Blue III: 000.
List of Ultima Weapons
- See: Weapon Lists/Ultima
Step 1: Obtain a Rusted Weapon
The first step to creating an Ultima weapon is obtaining a level 75 Rusted Weapon. There are three ways of getting these: commonly from the Proto Bahamut raid, uncommonly from the Angel Halo dungeon, and by trading Renown Pendants for them at the Shop. If you run Angel Halo, it's recommended to run it on Very Hard.
A rusted weapon can be uncapped by combining 4 copies, but you can also buy ![]()
Step 2: Create an Atma Weapon

To create an Atma weapon, you must first create a relic from a level 75 Rusted Weapon. To create a relic, go to the Shop > Weapon Series > Ultima Weapons > Atma Recollection, then look for the weapon type you wish to craft. In addition the following items are needed to create a single relic. These depend on the element you choose for your weapon:
Low Orb ×250
Whorl ×250
Flawed Prism ×250
After creating a relic, the following materials are required to upgrade the relic into an Atma weapon. These also vary depending on the element chosen (Dark requires both Water and Earth trial fragments; Light requires both Fire and Wind):
Trial Fragment ×20
Horn of Bahamut ×2
Meteorite ×10
Supreme Merit ×20
Ultima Core ×1
You can currently only obtain ![]()
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Step 3: Create an Ultima Weapon

An Atma weapon at level 100 and weapon skill level 10 is required to create an Ultima weapon. Note that increasing an Atma weapon's skill level is equivalent to that of a Bahamut Weapon. These materials are needed to forge an Atma weapon into an Ultima weapon, some of which correspond to the weapon's type and element.
Weapon Stone ×500
Elemental Quartz ×500
Urn ×30
Legendary Merit ×10
Silver Centrum ×10
Primeval Horn ×3
Ultima Unit ×5
Trade Gauph and Ultima Keys

Both can be found and traded for with materials under Shop > Weapon Series > Ultima Weapons > Trade Gauph Keys.
There are six types of basic Gauph Keys and four types of Ultima Keys.
Gauph Keys
- Gauph Keys modify the first skill of an Atma or Ultima weapon. This skill only affects party members who have the same weapon specialty. Using a Gauph Key will add an additional effect to the first skill.
- By default, the first skill grants a 20% ATKNormal modifier and 10% HP boost at Skill level 10 to party members who have the same weapon specialty.
- Skill levels are kept the same whenever a Gauph Key is used.
- For example, using a
Gauph Key of Strife on an
Atma Axe (Fire) will create a skill that gives a big boost to axe-specialty allies' ATK & HP & multiattack rate.
- These skills can be changed at any time by using another Gauph Key. The previous Gauph Key's effect will be overwritten.
| Key | Skill Icon | Skill | Total EffectValues given are at skill lvl 10 | Trade Material |
|---|---|---|---|---|
Gauph Key of Will |
Massive boost to ATK |
|
||
Gauph Key of Strife |
Big boost to allies' multiattack rate | |||
Gauph Key of Vitality |
Massive boost to allies' HP |
| ||
Gauph Key of Strength |
Big boost to allies' ATK based on how high HP is |
| ||
Gauph Key of Zeal |
Big boost to allies' ATK based on how low HP is |
| ||
Gauph Key of Courage |
Big boost to allies' critical hit rate when superior element |
| ||
Ultima Keys
- Ultima Keys modify the second skill of an Ultima weapon. Only Ultima weapons have a second skill.
- Skill levels are kept the same whenever an Ultima Key is used.
- The second skill affects all party members. There is no special requirement for its effect.
- There is no default second skill. An Ultima Key must first be used to unlock an effect.
- The effect does not stack with Dark Opus Weapon's Guiding Revelation skill if both of them affect the same cap.
- These skills can be changed at any time by using another Ultima Key. The previous Ultima Key's effect will be overwritten.
| Key | Skill Icon | Skill | EffectValues given are at skill lvl 10 | Trade Materials |
|---|---|---|---|---|
Gauph Key α |
Boost to one-foe attack DMG cap | 10% | ||
Gauph Key β |
Boost to skill DMG cap | 50% | ||
Gauph Key γ |
Boost to charge attack DMG cap | 15% | ||
Gauph Key Δ |
Boost to chain burst DMG cap | 50% |
Charge Attacks
Atma Weapons
All Atma weapons have the same charge attack: All allies gain 25% elemental ATK Up for 3.5 turns.
Ultima Weapons
All Ultima weapons have the same charge attack: All allies gain 30% elemental ATK Up and ![]()
Strength: 30% for 3.5 turns.