I just unlocked my first free agent and I was wondering who I should get Fade looks fun but I don't know how difficult she is to play. I prefer agents that aren't overly complicated or controllers.

There should be something that appears in the kill feed when a phoenix ult is killed. Usually, the only way to know is by looking at the ults or a teammate comms, which aren't very reliable. It would just be a nice quality of life change.