〜し for Not Only…but Also… - Tofugu し is a conjunctive particle that typically connects sentences, not ends them However, it's quite common to end a sentence with し and leave it unfinished in conversation
JLPT N4 Grammar #13: 〜し、〜し - にほんごクラブ さくら *The 〜し、〜し structure often gives the impression that the speaker is not giving the full list of reasons or attributes but is highlighting the most important ones