Soooooo- I wanna start by saying Micah is like.. my strongest OP character bar none- in my roster there's no one else who even comes close on account of- well him being a 9 tailed kisune! But I'd be glad to paste in what I have in me note 😈 and elaborate a bit more.

Curses- he can create VERY powerful curses which can either be used on entire bloodlines of families or vast areas of a country
These curses can range in what they do but as a 9 tailed nogitsune are very potent and very troublesome to remove. These curses don't have a specific way of working, infact Micah can choose what the curse is. Some of his favourites to do though are bloodline curses where an entire family is doomed to suffer misfortune, binding curses where an individual is restrained by it in some way, and bad luck curses- the kind in which you would get if you shattered a mirror.

Foxfires- He can make and create blue and purple flames to harness as a weapon, he can also use these to raise yurei from their graves- possess mortals with fox possession and even create tube foxes to serve his own needs. Overall this is the core of what he uses on the day to day, all foxes have fox fires but his level is attainable by only 9 tailed ones.

Tails- his tails are not just for show- each one is capable of moving independently and being used as a whip or blade of sorts. They have a supposed "sentience" as he calls it, like they sometimes move on their own.

Bite- His bite is unlike a normal fox's- if bitten it can cause necrosis much faster and even make people contract an illness which can never be cured- not much more complex than that, basically don't get bitten by him.

Aura- his aura is part of why being around him is so difficult- 9 tailed nogitsune can use this to simply intimidate or all the way to making people suffer death from fear, all in a single glance. Other ways he can use this is manipulation, seduction and doing what he needs to get someone else to "see" his way- no matter what. I depicted this very recently in the Kin'emon picture~ that blue mist is a representation on how he can stop someone in their tracks if need be~

Fox protection- this is by far his most "divine" trait. By pledging himself to a single soul or shrine- that individual or building now cannot die from age- they will be protected from illness (to an extent) and be blessed with luck and good fortune.
They will now be connected to the fox- to share a single soul together in pain and health. This is damming for the fox as their life is now connected to anothers- but is usually taken as the ultimate form of love. This is what Orochi has over him~ while it means they share everything down to pain- it can only be given once in a fox's life- hence why it is usually only given to shrines which stand for thousands of years.

Shape-shifting- all foxes can do this, but 9 tailed individuals are masters at it- masters at making themselves appear in anyway they wish.
Many will use their human forms to hide in the shadows of someone powerful. Honestly he doesn't shapeshift nearly as much as he should- his hubris keeps him in his fox form nowadays.

All of these powers would normally develop slowly over time- some would never even manifest untill a certain number of tails like his curses and aura- but since he rushed himself to growing all of his tails- his powers reflect that in their instability~ sometimes- he may find some of these working against him too.