First of, i love the concept and the art of Mirage! you guys did a great job there!
When it comes to his kit on the other hand, and what he brings to the team. He is completely useless.
* Passive skill - He has to be downed in order to actually make use of his passive. That is bad in my opinion, because people can still see where you are moving and you don't get far.
* Ultimate - Yeah... it renders him invisible. But he can still get shot, and he cant use a weapon until 1-2 seconds after he is visible again. In most cases his ult is useless.
It feels as if the better characters was unlocked from start when the game was released. Mirage and Caustic are just, bonus characters. Caustic is situationall and actually helps his Squad at times. But his bombs can also hurt the team as it affects them as well. Mirage doesn't really do anything except bring some voicelines to the squad. Love the character, dislike the kit.