One of them.

( there is still a vicious sort of pleasure in the knowledge that he struck down snoke. that he was able to free himself when even vader himself had failed. )

Though he was not the threat I believed him to be. ( oh, he was vicious. canny. all the things he had been warned against, but he hadn't been the true threat. ) He will be a greater challenge, but hardly insurmountable.

( the question is less could he kill palpatine than: how and how to ensure he didn't rise from the ashes a second time. )