Currently Playing a Warforged Barbarian THF and I gave it Adamantine body at the first level but now I'm wondering if I'm getting a penalty because I only have medium armor prof (Barb)...just wondering becuase its not actual armor and i don't have the "!" icon saying I'm not prof.

Also since I mentioned the "!" icon is there any way to turn that off I've got a heavy pick on my wiz thus not proficient but I only have it for the effect (Power 2 i think) and that icon is kind of annoying.