Only Love Can Hurt Like This - Speed Up Echo
As befits a gunslinger, Cassidy is one of the game's best duelists. He is capable of killing almost anyone he gets up close to with blinding speed his grenade and unloading his Peacekeeper into them. The accurate hitscan nature of his primary weapon also makes him suitable for fighting mobile targets like Genji and Pharah at medium range. Combat Roll not only provides him a quick mobility to escape, but also fully reloads at the same time which is what his playstyle really needs. Deadeye can be used to quick-kill on non-tank heroes within his line of sight or zoning away the opponents due to how the guarantee kill shot.
only love can hurt like this - speed up echo