Endgame Rush
During endgame, it is one of the most adrenaline- based aspects of the game, if survivors aren't camping exit gates. Players are rushing, trying to save teammates, healing, and overall trying to escape and the killer is rushing trying to find anyone hoping to turn the tides of the trial last second. And all of this is done within a 2-minute timer.
I think we can all agree endgames games are the best, survivor or killer. Yet there are very few perks that compliment this on killer side. It is so rare to see any killer use a end game build now. And its very rewarding to have killers use end games builds as it just gets rid of the concept of 3 gens, and gen regression build, and limits tunneling as you want survivors to stay alive until endgame.
But because of the lack of endgames builds/killers and their variety, nobody really uses them. I think the most heart paced killer with a endgame build would be pig, if she placed her traps on everyone during endgame collapse forcing them to get rid of the reverse beartraps. But even that comes with horrible risks(having to open gates that may let all survivors escape before you place a trap on anyone) So because of the lack of endgame builds, there really arent many survivor sided endgames builds either. If we really focused on dbd as a whole, we could all accomplish this!