Originally posted by Lord Lucien
You still need to provide a conclusive source which states that Nihilus' attack is instantaneous.
KOTOR 2, when you find out the truth of Nihilus and Katarr. There was a great gathering of knights and masters, which Atris was supposed to attend. She didnt because she sensed the thing that was feeding off the life force of force sensitives. So, she arranged the gathering to draw it out. it worked. Nihilus came, and instataneously drained the life from everything, flora and fauna, anything with some breath of the force, all of it died. He was attracted by the masses of knights and masters. Miraculously, Visas somehow survived, but was dying. Nihilus saved her and made her his apprentice.