Is Chill Touch intended as a full counter to any creature that has health regeneration?

What if Stealth Check equals Passive Perception check?

Can you cast Charm person on a creature charmed by Strahd?

CoS the Holy Symbol of Ravenkind requires attunement, would a Celestial Warlock or Divine Soul Sorcerer would fit?

Why Vampires are not immune to poison?

Do the original Tarocca cards work for Curse of Stahd?

Any tips for a tank Abjurer?