Now that we have Makima vs Gojo, can someone explain how her powers work? I'm still fuzzy on how it works and how it might interact with Gojo
The easy one is Control. Basically, she can assert dominance over someone she sees as lesser. This can mostly make them agree or do what she says with no remorse. Its safe to assume its not flawless, but we don't see a lot of people turn her down when she gives a demand.
She has... some sort of psyhic ability to cause people to die when some guy just got a nosebleed and die from bleeding out because she glared at them (this might be due to a contract or some form of control she hasn't used... or Fujimoto being Fujimoto)
Among this, her Control is pretty versitle as being able to travel in the form of rats, some sort of gravity crush and clairvoyance as she just said the name of someone and they just go boom. (This however, is hard to do because it requires prep to set up) but the range is insane as she did this from a hilltop and assassinated people trying to kill her, kidnap Denji, and assassinate the Devil Hunters across the city. And on top of that, assuming shes being given the borrowed powers of other Devils and contracts - this extends making zombies and outright no-selling BFR (as she ordered Spider to bring her to Hell while not being there) or having an army of other Devils and people to fight for her. Other fun abilities she likely obtained includes limited precognition.
This form of psychic (well, its labeled as telekinesis here so I'll try to keep it as that) is also notable in her fingerbangs - which we assume she got after off-screening the Gun Devil as she simply goes 'bang' and the force was enough to make Power Powerless and launch ChainsawMan into space with three shots.
As for her regeneration, because of a contract with the Prime Minister, any fatal blow delivered to her transfers to a different citizen of Japan. When shot through the head (even getting part of it outright deleted by the Gun Devil), she regenerated almost instantly and can pretty much recover from any fatal wound. This is potent enough as even after Denji diced her to pieces, people were still dying and getting sick as a result of the contract long after she was chopped up, pretty much meaning she can reform over time if not killed... which only worked because Denji ate her with love in his heart.
Basically, shes got decent haxes and versitility. Ironically, I have no clue how Gojo works because everyone makes JJK sound like I need a mathmatician's degree and I never could get into the series despite trying at least 5 times. Best I heard is Gojo putting her in a state of immobility by overloading her mind (which ironically, is how the Doll Devil was defeated... and Makima shrugged it off since the Fiend who used this ability can make this occur passively... and said Fiend was already terrified of her) - so no clue if true or not