Wraith Buff/Debuff Ideas; Tactical Timer, Clear Mind, and Trail Render Distance
I know Wraith is already super popular, and while I do have a debuff in mind for her, I also have two buffs for her. And I know it's probably pretty frowned upon to give her any buffs with her popularity already. But that's because of her hitbox which can always be tuned later. I've played as her, and personally I think, aside from her being good at combat because of her hitbox, her abilities are sometimes boring and frustrating, compared to other legends. She isn't as fun as other legends with her abilities.
It all comes from her tactical. I never really understood the change from a 25 second cooldown to 35 seconds. The whole thing only lasts 3 seconds. And it's not an amazing tactical to have a longer recharge than Pathfinder, Gibraltar, Bangalore, Caustic, Wattson, and Revenant. Her tactical is used to get away or flank. Many of the other legends I just listed have tacticals that are better at those jobs and have lower cooldowns. The big issue I have with her tactical is enemies can still see her and the delay she has after it goes away where she can't use her gun for a while. Both of those combined makes it too easy to chase her down and gun her down after she escapes the void to the point where it almost feels useless using it unless you're a second or two from rounding a corner or using it to go out of the zone. You could make her completely invisible or make it last longer, but I'm not recommending those. This is what I recommend;
Tactical Cooldown Reduction: Reverse the cooldown for her tactical from 35 seconds back to 25 seconds.
BUT
Clear Mind: She requires peace of mind in order to activate her tactical. She must become one with the void before entering the void. Because of this, she can only activate her tactical if she has not taken any damage within the last 3 seconds. She needs 3 seconds of peace before being granted 3 seconds of peace. Damage from the zone does not count.
Trail Render Distance Reduction: An enemy player should only be able to see Wraith's trail if they are really close to her. Maybe 10m-15m? This way it's harder to predict her movement, giving her an actual fighting chance when she comes back into reality. But still gives the player a chance to chase her down if they were already close to her.