if i have a main character but lets say i want him to transform into a giant or a wolf is that possible with unity software and how would i be able to do that?
It is possible. You could instantiate your wolf prefab at your player’s position, then perhaps fade in the wolf prefab and fade out your player prefab. You could add a shaking effect using some clever transform manipulation.
There are many ways to do this, it is up to you how you want it to look.