R. Mason Thomas is an explosive, "hair-on-fire" edge rusher who compensates for a lack of prototypical length with elite get-off and a sophisticated pass-rush plan. While his frame (specifically his 0th-percentile arm length) will lead to "Designated Pass Rusher" (DPR) labels, his high-motor play and lateral range make him a disruptive force. He is best suited for an odd-front (3-4) outside linebacker role where he can utilize a wide-9 alignment to stress tackles with speed.