Jefff von Heinfeldt/Nen

Hunter x Hunter (NEN /read the ability)
Main -Universal Key traits ability Energy conversion
 * ability to fuse all energy with itself,
 * free to transform any energy in the body into any force known to you.
 * 1) can change into any energy and combine it

Type
Enhancement (golden energy) 1 .offensive and defensive
 * Use nen for both offense and defence
 * use aura to increase the natural abilities of an object or one's own body.
 * greatly increase their physical attack and defense

Advance technique
Round / EN Circle/ Radar technique
 * ability is to let the gas expand outwards in its own heart
 * By doing so be able to detect all creatures within the scope of the gas.   .
 * It is a very powerful investigative technique