Ash - OP or Trash?

@hayhor After research this tricky question, I found the answer:

Ash passive :

0. Mark new the death box in the whole map (for 3 minutes) so ash can easily know where is the killing happening.

    Team mate doesn't see so you've to communicate with them.

1. If you interact with death box, it mark enemy team who killed the player, not their team mate (act like a detective/cop on murder scene)

    So you cannot kill player then use the death box to find the remaining team mate. 

2. Enemy mark only showed for 1-2 seconds on Ash map then you have to communicate and haunt them down.

Ash ability is keep by her so you've to communicate a lot.