Wraith Buff

I like Wraith, though I do have a couple issues with her.

The inability to open a door while using her Tactical feels silly.

The main issue I have is with her Ultimate though. I still remember the first time I used it:

My teammates were down, side by side, I was in the distance with a long range rifle. I used my Ultimate and rushed towards my fallen allies, ducking and covering and avoiding fire. I reach them and open the portal! They both crawl through to the safety of my snipers perch... or so I thought... as I'm picking them up an enemy leaps through my portal and shoots me in the face with a shotgun.

I uhh... I'm not sure if I'm saying that an enemy shouldn't be able to use my portal. I think test best solution would be allowing Wraith to close it as she sees fit before the 60 seconds is up.