Duplicate abilities?

[JusticeZero]

So the first character somebody wants to make is a Skinwalker Feral Heart Soulknife. Which means they have a lot of abilities between Race and Class that are doubling up and duplicating each other, since both the race and the class are basically different ways to turn into a werewolf.
How should I deal with the extensive doubling up/redundancy like that?

[Psyren]

Assuming you mean a werewolf-kin skinwalker, the only real redundancy here are the skinwalker claws vs. the feral heart claws, as they wouldn't stack. But you can simply not choose the claws option when you change shape as a skinwalker - going for either the bite attack, the darkvision, or the racial bonus to saving throws instead.

[Prime32]

If you're looking for a house rule, there's precedent in a few similar class features for "the claws get bigger, dealing damage as one size larger".

[SangoProduction]

It would help to detail what exactly you believe is doubling up. Then more specific advice can be given.