A 6-foot-5 receiver out of Iowa State, has a huge frame and can make circus catches look easy at times. Butler's massive catch radius should prove a boon for new quarterback Kyler Murray.
The biggest digs on Butler's resume that pushed him into the fourth round is a propensity for drops and questions about his long-strides capping his run-route ability.
To open Day 3 with a player of Butler's upside is a good start for a Cards team that needs to fill holes all over the roster. Playing in Kliff Kingsbury's system will provide Butler plenty of playing time to develop into a dynamic force on the outside. Given his upside, Butler could be a potential steal at this part of draft the process with the volume of opportunity he could earn in Arizona.