Wraith Buff

"Wraith's Q renders enemies invisible to you, but you stay visible to them, while also being unable to do anything except moving for the duration. Bangalore's Q can be used twice and can render your entire team basically invisible, while allowing you to continue shooting, healing, reviving or what have you."

You conveniently left out that Wraith's Q makes her avoid all damage and move faster for the duration. Her ultimate isn't just a point and click damage attack like Bangalore's, Its tactical squad movement and therefore takes a little more strategical aptitude. she is actually one of the strongest characters imo. Just because you aren't making effective use of the tools you are given does not make the tools weak.

I do like the suggestion of the option to close the portal prematurely.