Sadako

Sadako's problem is that she's very good at dealing with new players or ones who don't understand how she works, while skilled and knowledgeable players can do laps around her. Buff her for the higher end and the lower end will be worse off.

That said, I dislike that's the case, and I still wish BHVR would allow for more user friendly tooltips and in-game explanations for powers so we can have meaningful buffs.

On a side note, I still would like to see Sadako get something similar to doctor's madness based on condemned stacks personally.

I'm no longer sure what to do about Sadako. Statistically she's one of the most lethal Killers in the game, but everyone knows that's only because newer or returning Survivors don't know how to deal with her Condemn after the devs changed it 14 times and because OnePumpWillie, one of like 3 Onryo mains still in existence, is some kind of unstoppable murder robot from another dimension where she's actually good. For everyone else she's a pretty miserable Killer experience. Survivors have too much agency over how she can apply Condemn, and the only way to make it work is by pursuing a really nasty approach of slowing the game with slugging and spamming Projection repeatedly on a small or vertically dense map like The Game or Midwich. If you don't have that, she's basically a worse Wraith. I learnt to play DBD as Onryo because her perks were good (before Call of Brine was gutted) and her fundamentals are simple, but after a certain amount of time I realised she just didn't have the firepower needed for me to compete with stronger Survivors at higher MMR levels.

My big swing would be to rework the Condemn mechanic entirely and make it something more aligned with the other mini moris still in the game (think Myers and both Vecnas). Maybe she normally has no Terror Radius and is ambiently Demanifested when more than a few metres from a Survivor, but picking up a tape makes her visible and audible to that Survivor, while allowing her to build up Condemned (which would need to do something different than allow an instakill) on Survivors holding them? This would solve the pain point in her design that makes her hard to balance fairly and modernise her design. It would have the risk of potentially weakening a core element of her identity, but it's not impossible to retain the power fantasy of a terrifying apparition that haunts Survivors until they die of fright. I'd also then see if she needs a buff to her other Power elements and add-ons.

A more realistic, less involved option would be to reduce the cooldown on TVs for Projection, including when Survivors turn them off, reduce the charge time of Manifestation and make addons like Bloody Fingernails and Reiko's Watch basekit and give them new functions. I'd then make the range of Condemn from a TV clearer to both Killer and Survivors and possibly tweak how much Condemn a Survivor can build before they're mori-able. Ideally this would make non-Condemn playstyles better while also making pure Condemn less feasible, similarly to how Pig has more options than forcing 4 RBT kills these days.