[Nezha] has several synergies in his base kit that can be used against almost every type of mission. We subsume a defensive QoL ability to make [Nezha] nearly invincible when played correctly.

Null Star is chosen because it massively increases your DR but Dispensary and Quiver are good choices depending on the type of content that you're doing.

Divine Spears is usually the ability chosen to be replaced as it performs inconsistently against some enemies.

[Growing Power] benefits every ability but can be replaced with any other aura depending on the type of content you're running.

Controlled Slide is only used because this is a learner build for most players and his passive is extremely off-putting. Replace it with a regular [Power Drift] or any other exilus mod that fits into the polarity plan.

Blind Rage can be swapped for Energy Conversion or Intensify if you're having issues with your energy economy.

Vitality and/or [Health Conversion] can be swapped for [Rolling Guard] or any mod that fits into the polarity plan if you're going against very high level content.

Arcane [Guardian] probably shouldn't be replaced due to the synergies it has with Warding Halo but if you're running very high level content it can be swapped out with offensive arcanes.