Comments of chapter undefined of DxD Mash-Up: Soul System

Can give him battle will (aura) from the time I got reincarnated as a slime: Battlewill ｢気闘法, kitōhō, lit. "Aura Fighting Method"｣ is a family of arts that makes use of the aura present in all living beings to perform powerful physical attacks and effects that resemble magic. Unlike magic, these techniques do not require any sort of chant and usually have little to no casting time. Examples of Battlewill include, but are not limited to; body and weapon strengthening, presence concealment, creating aura constructs, blocking an opponent's regenerative capabilities, and flight.