The feat description for wolf shows that it deals 1d6 piercing and slashing damage...
This is acceptable and seems to be working fine. When attacking skeletons it does partial damage, while attacking zombies it does full damage. I have read that animal forms are supposed to be effected by feats that deal with bludgeoning damage, but whatever.
However, winter wolf description states that it deals 1d10 piercing and bludegoning damage.
I dont remember how it effects zombies, but is most certinly does NOT deal bludgeoning damage to skeletons (yellow damage numbers). This makes me conserned if my improved critical bludgeoning is broken as well. After all, if it isn't doing full damage to skeletons, is it really be effected by a feat that specificly works with bludgeoning attacks?