Taruon's powers come from the warp is alternate dimension of purely psychic energy. This chaotic dimension is how Psykers use there powers but using there powers are just as dangerous to the psyker as to there opponents like if he isn't careful he can exploded. In addition Taruon must manifest his powers before casting a spell using a warp charge to use it im going to give him 9 charge he recover the charges naturally by waiting to recover or focus to recover but this drains stamina and is impractical in combat . Each of his spells require 1 or 2 charge to cast but using his force sword requires no charge. Also heavy use of his powers drain his stamina greatly leaving him vulnerable to normal attacks.