Range? Efficiency? Unnecessary luxuries. With 200%+ Duration and 300%+ Strength, we'll forget the other stats even exist.

This build utilizes one aura forma, three umbra forma, and three regular forma. Zenurik is highly recommended.

Low Forma Alternative
The following alternatives can be used to reduce the forma cost while preserving effectiveness:

• No exilus, Umbral Fiber, Umbral Intensify, Rank 8 Umbral Vitality, Primed Flow, Primed Continuity, Transient Fortitude, Blind Rage, Health Conversion (two umbra forma, one aura forma, and one regular forma with all max rank mods except Umbral Vitality).

• No exilus, Steel Fiber, Intensify, Vitality, Primed Flow, Primed Continuity, Transient Fortitude, Blind Rage, Health Conversion (one aura forma and two regular forma with all max rank mods).

Use any Exilus you want, they're all QOL. For squad play, you can replace Narrow Minded with Safeguard if you keep Umbral Vitality at Rank 8 or lower.

Strategy Guide
Nezha is very simple and easy to play. The abilities in this build are as follows:

1. Firewalker leaves a trail of fire after him, providing mild CC and heat procs on enemies, while also increasing his sprint speed.

2. Blazing Chakram can be used on tougher enemies to briefly multiply the damage you deal against them.

3. Warding Halo works exactly like Rhino's Iron Skin, except instead of total invulnerability, it provides 90% damage reduction while active. Safeguard allows it to be cast on allies and defense objectives with 50% effectiveness. This augment is absolutely vital for certain missions (defense, mobile defense, defection, rescue, etc.) because the DR it applies lasts until the Warding Halo on that target is broken, rather than being duration-based.

4. Nourish adds viral damage to enemies you attack and enemies who attack you and allies within range. It also multiplies energy gained from all sources, including Zenurik's wellspring. It is a must-have.

Cast order doesn't really matter, just make sure 1 3 and 4 are always active and use 2 on acolytes, archons, and other enemies you need to deal extra damage against. Ensuring Health Conversion is fully procced before casting 3 will maximize its effectiveness. Alternative options to replace his 4 without changing mods are Empower, Roar, Pillage, and Defy. Use Corrosive Projection with Pillage and this level of ability strength will 100% strip.

Personally, I recommend using Azure Archon Shards for Energy Max or Crimson Archon Shards for Ability Strength, but it doesn't really matter. This is a matter of personal preference.