Gunbreaker Leveling Guide
Guide Info
Last Updated: 6 Aug, 2024
Patch Applicable: 7.05

Leveling Guide

Like any other class, you may have to do lower level content and of course will need to Level from level 60 to level 90 if forgoing a jump book. So, it’s important to keep on top of GNB, especially at Level 70 due to sync for The Weapon’s Refrain (Ultimate) and The Unending Coil of Bahamut (Ultimate).

No Mercy is unlocked at level 2, so it’s used in all forms of content from the beginning of A Realm Reborn up to current content in Endwalker. No Mercy is standard and should be used on cooldown, though the abilities and weaponskills available to you will expand as your level increases.

Level 15-29

1-2 Targets:

  • Cast the Solid Barrel combo.

3+ Targets:

  • Cast Demon Slice

Level 30-39

1 Target:

  • Cast the Solid Barrel combo.
  • Cast Burst Strike when the gauge is full or No Mercy is active.
  • Enter No Mercy with two cartridges.

2+ Targets:

  • Demon Slaughter combo
  • Continue to use the Demon Slaughter combo instead of Burst Strike at three targets.

Level 40-59

  • Sonic Break is unlocked at level 54 and procs when casting No Mercy.

Level 60-71

As you gain access to the Gnashing Fang combo at level 60. you want to use one of your stored cartridges for the combo instead of a Burst Strike. Gnashing Fang is every 30s, so it will be available for No Mercy if used on cooldown.

1 Target:

  • Cast the Solid Barrel combo.
  • Cast the Gnashing Fang combo + Danger Zone every 30s.
  • Cast Bow Shock + Sonic Break under No Mercy.
  • Burst Strike excess cartridges to avoid overcapping.

2 Targets:

  • Cast the Demon Slaughter combo.
  • Cast the Gnashing Fang combo + Danger Zone every 30s.
  • Cast Bow Shock + Sonic Break under No Mercy.
  • Burst Strike excess cartridges to avoid overcapping.

3 Targets:

  • Same as 2 targets, but stop using Burst Strike.

4+ Targets:

  • Same as 3 targets, but stop using Gnashing Fang.

Fated Circle is unlocked at level 72, as a result, it cannot be used in UCoB or UWU. Keep this in mind for phases where you do multi-target, including Garuda, Ifrit and UCoB Adds. In this case, Burst Strike to avoid overcapping on two targets, ignore cartridges on three or more targets.

Level 72+

1 Target:

  • Cast the Solid Barrel combo.
  • Cast the Gnashing Fang combo + Danger Zone every 30s.
  • Cast Bow Shock + Sonic Break under No Mercy.
  • Burst Strike excess cartridges to avoid overcapping.

2-3 Targets:

  • Cast the Demon Slaughter combo.
  • Cast the Gnashing Fang combo + Danger Zone every 30s.
  • Cast Bow Shock + Sonic Break under No Mercy.
  • Fated Circle excess cartridges to avoid overcapping.

4+ Targets:

  • Stop casting Gnashing Fang.

Bloodfest is unlocked at level 76. Use it on cooldown and ensure you have an empty gauge when using it.

Level 80+:

A lot of the guide’s core rules are applicable at level 80+. The only differences between level 80 to level 100 are the lack of a third Cart, no Hypervelocity, no Double Down, and no Lionheart, but the same rotational rules still apply.

  • Have any questions?
    Authors
    Azazael
    Azazel#1000
    Balance GNB Staff
    ‎‎‎‎‏‏‎ ‎
  • 25 Oct, 2021
    Created article
    12 Apr, 2022
    Updated for Endwalker.