A guaranteed dead hard that requires you to get hit three times before it activates, it doesn't seem that OP.
It doesn't cause exhaustion, so you can DH and then also use the perk, or vice versa. Yeah, I think a majority of survivors in the game are slightly above average or worse, but particularly at red ranks, at least on Xbox, there are plenty of survivors who know how to kite around every safe pallet and T wall which make chases take forever. This just gives them one more freebie and will make chases longer.
I see it becoming like Dstrike was before it got nerfed, where a majority of survivors who use it aren't good enough for it to really matter. But those who are good enough, it really makes a difference to the killer. But at least there you had counter play, you could slug, or dribble. Here you're activating the perk simply by hitting the survivor.
I just don't get their design direction sometimes. They clearly understand the killer it at a big disadvantage in terms of time, they keep making these events and killers that require secondary objectives, and even just made a perk that blocks some gens for up to two minutes. They also nerfed Dstrike, and yet we get this.
The only downside of the perk is if you heal, your aura is shown to the killer at a certain distance apart. But the last two killers they've released have survivors not even bothering to heal, so...
It feels like maybe they gave Ash some amazing perks to convince people to buy him and will just nerf them later, kind of like what they did with Freddy.