User blog comment:Patrick x hunter/does this nen ability need emittion/@comment-25814498-20150809194413

Depends. We've already seen that Nen have physical properties, so you can either have:

An emission ability that literally just makes your aura incredibly dense before surrounding yourself or others around it to produce a force field.

Or a transmutation ability where you surrround yourself or others with your Nen while still attatching it tto apart of your body, similair to a passive versian of Zeno's dragin's.

Hope that helped.