So I want to roll a WW character, but I'm not sure what to invest in.
I know that some skills affect the WW, but which ones and by how much?

There's a thread in Skyrim cheats hints and spoilers that's dedicated to werewolves try asking there as well

Didn't know about that, thanks.

200 stamina, 150 magicka, The Rest into Health.

Get the all 3 Magic Resistance perks, and the antronach perk from the alteration tree
Invest in the "Avoid Death" perk from restoration.
If your an Orc, use berserker rage before you transform for massive damage output.
Activate The Lord stone, and you'll be more effective against mages. (Be weary of Cryromancers and Vampires though)

I'd advise using enchanting to better supplement your magicka and stamina as well.

That's pretty much all there is to it.

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