Player Characters as Vampires

The game statistics of a player transformed into a Vampire Spawn and then a Vampire don't change, except that the character's Strength, Dexterity, and Constitution become 18 if they aren't higher. In addition, the character gains the vampire's damage resistances, darkvision, traits, and actions. Attacks and damage rolls for the vampire's attacks are based on Strength. The save DC for Charm is 8 + the vampire's proficiency bonus + the vampire's Charisma modifier. The Character's alignment becomes Lawful Evil, and the DM might take control of the character until the vampirism is reversed with a Wish spell or the character is killed and brought back to life.