Wolf-vision - Because of your new ability, have superior vision of a wolf. Which means that in dark and dim conditions, you can see in dim light within 120 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, and you only see in shades of gray. However, in human form you can only see 60ft instead of 120ft.

Each of you scores increase by what ever race you chose. For example, if you chose human it increases by scores that increase from that. However, no mater what race you chose increase the strength by 2.

You have advantages on Perception Checks because your wolf senses heighten your smell and herein.  

You can speak, read, and write common and two other languages.

As a bonus action you can transform yourself and take your second form. You transform can transform into a wolf and take all his capacity but you keep all your abilities score, all your skill. All your gears disappears but it is not lost. You gain the natural armor of your animal lycanthropy and change your AC considering that you don't have armor anymore. Your speed is the speed of the animal and your your naturals attacks are the one of the animal. Your life point are the same for your 2 form. You can revert as a bonus action whenever you want.

This is how you have gotten you powers. There are three options they are Born with it, cursed, or magical Item. All wolfs, no matter what path you chose, always has the following abilities. 

Shape change  - listed above

Claws - You nails are your weapons' and they are you primary chose in close corners. They Each deal a 1d8, one for each hand. However, if you attack with another weapon that is one handed such as a short sword or a club. You can use the other hand a bonus attack. If you use both hands they deal 2d8 and can still be used as a melee attack. The damage increases at levels 3, 5, 7, 9, 11, 13, 15, 17, 19, each by a die. (2d8 3d8 an so forth for each hand)

Bite - Your fangs are your ally. Your teeth are as sharp as daggers and because of this they deal 1d10. However, when you bite a victim, they have to succeed on pass 15 con check plus your modifier. If they do not succeed they will turn into a Lycanthrope. Since you will be the alfa, you will gain command over them. And if they revolt against you they have to role a 20 wisdom check in order to go against your command and gain free will. And they can only do this once per day. 

Howl - Your voice is like thunder and this causes you enemies to be disoriented. They will be dazed and prone for one turn, and the daze will last till the next turn. It they do not succeed they take 1d4 of dazing damage till its gone. (once every other persons turn. Takes it, skips, takes it, skips and so forth). 

Born with it - Your parents are both what you are, a werewolf. And you the same. Your are born with this gift and that makes you different then other Lycanthrope. You have the same basic abilities as the others but more. You have the ability to change into a werewolf at will, as a bonus action, night, day, any time any where. 

A Curse!!! -  You were bitten by another Lycanthrope or maybe you had a spell put on you. How you got this curse is up to you. You have the same abilities up above such as claws, howl, and bite. However, you do not have the exact same abilities as a Lycanthrope born with the powers. You can only change into your form at a full moon and only after a great while. For example, if you do not change into a wolf for a couple of days you can do it to night. But you can only change at night and the sunlight will hurt you. (2d12 for every minute you are exposed to it). 

A magical Item - You have the same abilities as up above. However, your power comes from a magical item. You can dawn the item but it can only be taken off every tens days. And that is the only way you can become a werewolf.