Artis was coached by Scott Johnson at Oscar Smith High School, where he was the 2017 Southeastern District Defensive Player of the Year. He was a two-time first team all-state linebacker and the 2016 6A South Region Player of the Year and finished his senior season with 103 tackles, 15.0 sacks, 39 tackles for loss, six forced fumbles and two pass break ups. He also ran track for Oscar Smith.