I guess it hasn't been a secret, but I suppose this is the first direct confirmation that Raoul's magic actually depends on his continuing to pursue his revenge and not just killing, but torturing his targets?
But it also explains his continuous power ups as well. The scale of his schemes and targets roughly increased over time, until he was even taking 'revenge' on the god of hell. He has to take increasingly more elaborate and consequential revenge in order to gain the power to go even higher.
Did his sister count as the first sacrifice? Does it need to be performed by him? Else what did he do in order to obtain black magic the first time?
But it also explains his continuous power ups as well. The scale of his schemes and targets roughly increased over time, until he was even taking 'revenge' on the god of hell. He has to take increasingly more elaborate and consequential revenge in order to gain the power to go even higher.
Did his sister count as the first sacrifice? Does it need to be performed by him? Else what did he do in order to obtain black magic the first time?