Brynhildr
Brynhildr is Sazh’s Eidolon and she is the third Eidolon you gain access to. Sazh and Vanille will battle Brynhildr at the end of Chapter 8 - Nautilus.
Brynhildr has an elemental affinity of Fire and, just like the other Eidolons, if the enemies you are facing are resistant or immune to fire damage, Brynhildr’s attacks will still work just fine.
Normal Mode
Brynhildr’s role in battle is similar to that of a 
Ravager. Her attacks can be used to help build up a Chain Gauge quickly and she will focus her attacks on the same enemy that Sazh is targeting. In order to use her most effectively, Sazh should be in either his 
Commando role or his 
Sentinel role, neither of which are ideal.
| Ability | ATB Cost | Description |
|---|---|---|
| Slash | 1 | Deal physical damage to targets in range. |
| Valkyrian Scythe | 1 | Repeatedly deal physical damage to targets in range. |
| Gunshot | 1 | Deal physical damage to target. |
| Pyroshot | 1 | Deal Fire damage to targets in range. |
| Cryoshot | 1 | Deal Ice damage to targets in range. Requires  Enfrost status. |
| Electroshot | 1 | Deal Lightning damage to targets in range. Requires  Enthunder status. |
| Hydroshot | 1 | Deal Water damage to targets in range. Requires  Enwater status. |
| Pyroburst | 1 | Attack targets within a wide radius for Fire damage. |
| Cryoburst | 1 | Attacks targets within a wide radius for Ice damage. Requires Enfrost status. |
| Electroburst | 1 | Attacks targets within a wide radius for Lightning damage. Requires Enthunder status. |
| Hydroburst | 1 | Attacks targets within a wide radius for Water damage. Requires Enwater status. |
| Curaga | 1 | Restore a large amount of target’s HP. |
| Arise | Auto | Revive from KO with full HP and no status ailments. |
| ATB Boost | Auto | Temporarily extend ATB Gauge to deliver a powerful attack. |
| Penetration | Auto | Bypass target’s Fire, Ice, Lightning and Water resistances. |
Charging the Gestalt Gauge
Helpful Hint
As a reminder, you can charge her Gestalt Gauge by utilizing the same tactics you used to charge her Gestalt Gauge during the Eidolon battle, namely:
- Yields to those who amass chain bonuses.
- Yields to those who strengthen their allies.
This means that it can be helpful to swap Sazh into his 
Synergist role to apply buffs to Brynhildr, certainly at the start of the summon sequence at a minimum.
Gestalt Mode
Hunting Dive has a chance to miss anytime it is used on enemies that are on the ground (i.e. most enemies). Pulsar Burst is also fairly effective for quickly building a Chain Gauge on one enemy or groups of enemies.
| Ability | ATB Cost | Controls | Description |
|---|---|---|---|
| Chopper Spin | 2 |  and  |
Strike target while spinning wildly. Jets deal additional damage. |
| Caltrop Bomb | 2 | and |
Scatter bombs that deal Fire damage upon detonation; jets deal additional damage. |
| Centrifugal Sweep | 3/1 | or and |
Damage surrounding targets; jets deal additional damage; chainable by repeating input (hence second cost). |
| Spark Shower | 3/1 |  |
Deal Fire damage to target; jets deal additional damage; chainable by repeating input (hence second cost). |
| Múspell Flame | All |  |
Engulf all enemies in soarding flames. |
