Essa Subclass — Fighter

Oathbound

Support / Defender

The Oath is not a promise. It is a contract with the Essa itself.

Hit Died10
PrimaryCON (for Feedback Saves); CHA or WIS (Oath-adjacent roleplay)
SavesSTR, CON
ResourceVials
RigFull Rig
Armor
All armor, shields
Weapons
Simple, martial
Key Mechanic
Resonance Pool
Rule Break

Oath Binding: Resonance persists between encounters — unlike all other alternative resources. Acts of Oath in downtime and roleplay generate Resonance. Break the Oath and the Rig inverts: Restore deals damage, Stabilize causes death save failures, Ward damages allies.

Archetype: Oath-bound defender and healer

The Oathbound made a commitment at the moment of Rig activation — a specific, stated, and binding principle. The Essa heard it. The Rig is calibrated to it. Every time you act in alignment with your Oath, the Rig generates Resonance — free fuel for Mend and Defense Techniques. But the Oath is real. Break it and the Rig inverts. Everything that healed now damages.

The Covenant Rig is a Full Rig — complete Essa-integrated armor. The resonance housing visibly pulses when Resonance is generated. Allies can see it. Enemies can see it. The Empire can see it. Licensed Covenant Rigs require Oath disclosure in writing at registration. Many Oathbound do not register. The licensing fee for disclosing a binding moral principle to an imperial bureaucracy is considered by most practitioners to be offensive.

Oathbound — Shatterds Sourcebook
Key Mechanic: Resonance Pool
Resonance generates by honoring the Oath: +2 when you prevent an ally from reaching 0 HP, +1 for healing at 25% HP, +1 for stabilizing dying allies, +2 for meaningful Oath sacrifices. Resonance persists between encounters. Spend 2 Resonance = free Mend or Defense Technique (base effect, no Feedback Save).

Essa Interaction

Standard vial + Feedback Save for vial-paid Techniques. Resonance-paid Techniques have no Feedback Save. Forge Rig Burn Buffer: 2/SR at Tier 1–2 (Full Rig housing). Oath Inversion at Level 10: breaking the Oath converts Resonance to Dissonance and inverts all Mend/Defense Techniques.

Class Features

Techniques

Character Level34/6 unlocked
Showing 4 of 6 techniques

Level Progression

LevelFeaturesChannel SlotsRig TierResonance Max
3Covenant Rig, Oath Binding, Resonance Pool, Barrier, Absorb, Restore, Stabilize2T16
5Ward, Reinforce, Purge, Leap, Rig Tier 23T26
7Sense Intent, Root, Oath Fortitude3T26
9Rig Tier 34T36
10Restore Mastery, Oath Inversion4T38
13Rig Tier 4, Clear Burn5T48
15Pulse Strike (Inversion), Oath Resilience5T48
17Rig Tier 56T510
18Absolute Oath, Apex Calibration6T512+

All Subclasses

Essa KnightEdge KnightHexslingerTetherboundWarrantCovenantIronhandRawcasterThe StillMachinistOathboundBurnboundCipherboundWildboundCantboundDoctrine of the VanguardDoctrine of the WardenDoctrine of the Veil
fighteressa subclassfull rigsupporthealervialsresonance