Since there is four different verse of werewolf I thought about how it will work.
For twilight it's the same and they are shapeshifter not werewolf. They get their power by sacrificing a werewolf by the aid of a witch so twilight shapeshifter are hated by the werewolf community.
For their vampire abilities they are not called vampires but instead blood sucker because they need blood but they don't have all the abilities of a vampire. Their powers are gotten from sacrificing a vampire by the aid of the witch which makes them hated by the vampires as well.(blood sucker can turn others into blood sucker)
In case you haven't figured out witch is very important in this world. And now it's gonna get even more interesting for the story plot.
For the vampire diaries version of werewolf, they are descendants of Fenrir that tried to betray him. Because of this Fenrir cursed them to have to only be able to turn into a wolf at a full moon and it's painful for them to turn. This can be negated if they are a hybrid.
For the vampires they are the same normal vampires with the originals and everything. The change that I'm gonna make is if they drink animal blood they will become severely weaker than vampires who drink human blood. Not sure if that was already in the series.
For hybrids it's the same as the series one except hybrids have the potential to become teen wolf werewolf where they will get a massive boost. Like teen wolf werewolf are blessed by Fenrir himself so they can be two times to ten times stronger than a cursed werewolf.
Now for shadowhunter werewolf, they are cursed werewolf who managed to complete an inner trial to become a regular werewolf. If a cursed werewolf wants to redeem himself, they have to complete a trial given by their inner wolf. If they passed they will become a regular werewolf but if they didn't they die.
Shadowhunter vampire are basically the same as the vampire diaries one.
For teen wolf there is a minor difference. All werewolf can change into a wolf at will easily. Something the person find themselves stronger being in their wolf form. The special werewolf like Scott can turn into a true werewolf the same as Fenrir.
All beings except the very strong one or hybrids or tribrids can be kept prisoner by mountain ash. Witch can't be kept because they are humans.
Now I'm gonna be talking about Scott. I'm gonna spoil the story for you guys because I'm too lazy to explain it when I reveal it so I'm just gonna explain it now.
Scott is a tribrid. Yup he is the son of the one and only Niklaus Mikaelson. This is because Talia husband died a year before Scott was born. Talia being lonely was charmed by the lady charmer Klaus.
They had sex and Talia was pregnant. The thing with Scott is that his inner wolf is in turmoil and instead of one he has two inner wolf. One of them is cursed and the other one is blessed. This will make Scott occasional faint, go out of control and even cough out blood.
Scott is also isn't fully controlled in the full moon. I know it may seem like a nerf but I feel like this makes the story even more interesting. Scott basically has an incurable disease.
However, once Scott does the inner trial and actually pass, his inner wolf will become one and his power will not double it won't become two times to ten times stronger. It will become twenty times stronger and he will be a transcendent werewolf.
I know this makes his skill creation and creation magic seem useless if I'm just gonna 'nerf' him. However I have a perfect explanation for this.
Although he asked for no limits on it there is a limit to it. The goddess that he talked with wasn't the goddess that he was supposed to talk to.
That was the goddess of trickery and mischief. Yup it was Loki herself. Because of that she made a limit to his wish and only act as if they have no limits. Because of those limits he can only get as strong as his current world is. To break that limit he must either travel or get the real goddess he is supposed to talk to notice the abnormality.
The abnormality would be him being a transcendent werewolf. The sudden increase in the world power would make her curious. From then on Scott wishes will really come true. Before that Scott actually have to go through some challenges.
Although he is still super strong and op sometime he will be tricked and his 'illness' will weaken him. Scott will destroy most of his opponent but sometime he will be defeated or force to retreat. He isn't all powerful and beat everyone in the world in a single second.
Some people can outsmart him and defeat him but only some. This isn't really nerfing him because he is still op and got everything from his wishes but he will go through some challenges.
He also will at first only be as strong as Klaus was because his vampire and witch bloodline is sealed off by Talia because she lied about how she was pregnant before her husband died. Scott bloodline has a reason in why Peter become good.
I know I didn't explain it well and some will probably think I nerf him but I hope you remain patient and see how I develop the story to know how I never really nerf him.