How broken Would this killer perk idea be?

For reference - the numbers of this perk take into account if every survivor is healed post hook, you'd have it if you didn't down anyone early, after hitting the final survivor for the last time. This encourages leaving survivors, and hunting them down again, and attacking people with the endurance status effect. It only effects basic attacks and is a endgame back up with it's instant down effect. It's primary use comes from the deep wounds/broken status effects it gives which could be swapped out with mangled, or have that added with a lower requirement.

Its pretty much the exact thing i was going for. the more hits you get (and swf like to take hits and be left alone) the more powerful you get

and getting tokens is hard since you can't just farm them off of one survivor. you just get progressively more powerful the more you leave people to heal. at half/under half tokens you already get status effect afflictions that slow the game down, and when the game should be at its peak, you get instant downs.

Pairing this to a hex takes its power away completely. the aim of this is to be decently useful (like an alternative sloppy much like bitter murmur is to bbq) in the midgame, but have incredible power in the late game (if survivors take hits vs you, or heal incredibly quickly and escape you a ton) (much like rancor is to bitter murmur despite doing a similar thing.)