Wraiths tactical activation time needs a buff

@MoNosDirtyGaming Considering it has a long activation time I don't think it's supposed to be used when low on health. Its already incredibly useful at ignoring a number of Ults, abilities, and weapons so I don't think it needs to be buffed. Focus on using it right before taking tons of damage instead of as a panic option to get out of a bad situation.

I don't mind it having a shorter cooldown but adjusting Wraith isn't a priority. She's still strong.