[Lord Vaskulus N'Vareth Vaskaron]

I've a couple of newbie-ish questions, I suppose--

First, I've ascended my level 8 wizard to a warlock, he's been granted the ancient lore trait and is now level 3. How do I use this skill?

Second, the "Special" button doesn't exist for me-- for all of my characters it's the "Dragon Fire" button. Is this normal? I don't think any of my characters have that capability.

Thanks!