Base Class

Fighter

Melee / Ranged / Support

The Essa class. All ten subclasses run on the Fighter chassis.

In Onan, all 10 Essa subclasses share the Fighter base class. Before Level 3 you are a standard D&D 5e Fighter — Second Wind, Action Surge, Fighting Style. At Level 3, the Essa system comes online. You choose a subclass that defines your resource, your Rig (if any), your Technique list, and your Rule Break — the thing only you can do.

In the World

The Fighter is the most common chassis for Essa practitioners in the Shatterds. Standard military training, imperial or independent, produces Fighters. The Essa system grafts onto that base at Level 3 when a practitioner bonds with a Rig or develops an alternate channel — Momentum, Void, or raw body-expressed Essa. Before that point, a Fighter is a Fighter.

Key Mechanic: Essa Subclass (Level 3)

At Level 3 you choose one of ten Essa subclasses. Your choice determines your resource system (vials, Momentum, Void, or Internal Reserve), your Rig type (Gauntlet, Full Rig, AetherBlade, or none), your Technique list, and your Rule Break.

Essa Subclass (chosen at Level 3)

Essa Knight

Gauntlet Rig. Burn a vial every round, hit harder than anything at the table. Pulse Strike replaces any attack in your Extra Attack chain.

Edge Knight

Precision Gauntlet. One target. Efficient Burn makes T1 Glow hit above its tier — at Level 5, 25 gp outputs like a T3 vial.

Hexslinger

Gauntlet built into a ranged weapon. Long Barrel means all your Techniques fire at full weapon range. You never need to close distance.

Warrant

Tracker Gauntlet. Intel system builds 0–4 stacks on a Marked target, each adding +1 DC and +1d4 force damage per stack.

Covenant

AetherBlade — Essa-forged magic steel. The blade generates its own EP per short rest for T1 Techniques. No vial, no Feedback Save on those activations.

Ironhand

No Rig. No vials. No Feedback Save. Everything costs Momentum, generated by removing threats. The more you put down, the more dangerous you become.

Rawcaster

No Rig. Vials, but Feedback DC is 2 higher than standard. No Burn Buffer. On a natural 1, roll on the Wild Surge table instead of taking normal failure.

The Still

No Rig. No Essa. The Void is the absence of Essa — undetectable, unseverable, invisible to the Empire's Suppression Grid. You control. You do not strike.

Machinist

Full Forge Rig exosuit. Deploy autonomous constructs that act on their own initiative. You manage the battlefield. Your constructs handle the direct engagement.

Oathbound

Full Covenant Rig. A specific, binding Oath generates Resonance — free fuel for Mend and Defense Techniques. Break the Oath and the Rig inverts: everything that healed now damages.

Class Features

Fighting StyleLevel 1
Choose one Fighting Style. Your subclass may recommend a specific style. Options: Dueling, Archery, Defense, Great Weapon Fighting, Blind Fighting, Protection, Unarmed Fighting.
Second WindLevel 1
Bonus Action: regain 1d10 + Fighter level HP. Once per Short Rest.
Action SurgeLevel 2
Take one additional Action on your turn. Once per Short Rest (twice at Level 17).
Essa SubclassLevel 3
Choose one of ten Essa subclasses. Your Rig, resource system, Technique list, and Rule Break activate. The Essa system is now online.
Ability Score ImprovementLevel 4
+2 to one ability score, or +1/+1 to two. Repeats at Level 6, 8, 12, 14, 16, 19.
Extra AttackLevel 5
Make 2 attacks when you take the Attack action. Increases to 3 at Level 11, and 4 at Level 17 with Action Surge.
IndomitableLevel 9
Reroll a failed saving throw. Once per Long Rest (twice at Level 13).

Level Progression

LevelFeatures
1Fighting Style, Second Wind
2Action Surge
3⚡ Essa Subclass Unlocks
4ASI
5Extra Attack (×2)
6ASI
7Subclass Feature
8ASI
9Indomitable
10Subclass Feature
11Extra Attack (×3)
12ASI
13Indomitable (×2), Subclass Feature
14ASI
15Subclass Feature
16ASI
17Action Surge (×2), Extra Attack (×4)
18Subclass Capstone
19ASI
20Subclass Feature
fighterbase classessaall subclasses