User blog comment:RoznosicielCiast/What about Liandry's Torment for Skarner?/@comment-4131177-20130223205736/@comment-6061249-20130223210139

Well, Skarner mostly fails as full AP because he is just not made for this. Though, you don't really need to go full AP - offtank build with Torment + other AP item is enough for me.