Can a PC from Dragonlance show up in Barovia?

Could Strahd work towards becoming a stronger wizard?

What class would you say Sergei is?

If a soulless Barovian was a sorcerer, what ancestry would they have?

Curse of Strahd, what kind of weapons would he use instead of an unarmed attack?

Would you consider Curse of Strahd suitable for a group of 13yo players?