User blog comment:RoznosicielCiast/What about Liandry's Torment for Skarner?/@comment-4131177-20130223205736/@comment-4131177-20130225165846

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That, and after you someone, you deal damane at the end of the spell, which makes for a nice extra slow. Combined with your already slowing (and dealing extra Liandri damage) with the first hit, and the added tankyness skarner needs, it should be a nice addition to a build like that.