the aspect lets you get 8 stacks of cursed souls and then release with a macabre skill for necro so i used corpse tendrils multiple times with it and it was not casting the souls out and it just sat at 8 stacks as far as i saw and checked after a corpse tendril cast multiple times and was still at 8 always. i realised its corpse and macabre skills and mine was a corpse skill so know why it didnt work sorry