Ultimate Ajax
Written guideUpdate 1.3.35Public0 commentsMobile FortressWITH ANCESTOR MODULEBOSSINGMOBBINGEND-GAMESOLO

Ajax all-in-one gunner. | Mobbing and Bossing. (with Ancestor mod)

Ultimate Ajax - by CHRAMOX - Updated Jul 29, 2026

Catalysts12
Energy ActivatorActive
Capacity81 / 85
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1likes
Supply Fortress
Trigger
3
Mobile Fortress
Level 11
8
Guardian's Resolution
Ancestors
8
Skill Expansion
Level 11
8
Holding the Line
Defense
Level 11
8
Maximize Range
Range
Level 11
8
MP Conversion
Control
Level 11
15
Mid-Air Maneuvering
Level 11
6
Shot Focus
Level 6
8
Battle of Stamina
HP
Level 11
8
Increased HP
Level 11
8
Increased Shield
Level 11
8
Increased DEF
Level 11
Weapon builds
Weapon 1
ERASER | Crit
Weapon 2
Thunder Cage - Build classic
Reactor
External Components
Fellow
Select a Descendant to show its Arche Tuning board.
Ajax all-in-one gunner. | Mobbing and Bossing. (with Ancestor mod)

Tips and tricks to build:

high DEF on ancestor mod.

with 210% DEF am and this build should be somewhere 335k def.

ajax can buff own DEF, so 300k should be fine if not you can change "holding the line" mod to "shield conversion (def)" mod.

Guns:

Mobbing: Eraser

Wall Crasher: Thunder Cage good to go or use Eraser or Shakles.

Skill Rotation (important)

1,2,3,4,1,2,3 in succession then hit a enemy with a skill then shoot it.

time to time (depents skill duration) you need to do 4,1,2,3 and hit enemy with a skill and then shoot it.

by hitting enemy in 1st skill renegates ammo per tick.

by adding "Compulsive impact/high-power rounds" modules to Eraser and piercing light, per tick you get even more ammo.

Ancestor mod:

for a good rolls, you need:

2+1 format. that can give even +200 DEF.

Priority:

DEF

good ot have:

Range

Duration up

non-attr boost

Tech boost

for a good negative:

dimension (boost and modifier)