If Strahd von Zarovich isn’t in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form.

While in bat form, Strahd von Zarovich can’t speak, its walking speed is 5 feet, and it has a flying speed of 30 feet. Its statistics, other than its size and speed, are unchanged. Anything it is wearing transforms with it, but nothing it is carrying does. It reverts to its true form if it dies.

While in mist form, Strahd von Zarovich can’t take any actions, speak, or manipulate objects. It is weightless, has a flying speed of 20 feet, can hover, and can enter a hostile creature’s space and stop there. In addition, if air can pass through a space, the mist can do so without squeezing, and it can’t pass through water. It has advantage on Strength, Dexterity, and Constitution saving throws, and it is immune to all nonmagical damage, except the damage it takes from sunlight.

If Strahd von Zarovich fails a saving throw, it can choose to succeed instead.

When it drops to 0 hit points outside its resting place, Strahd von Zarovich transforms into a cloud of mist (as in the Shapechanger trait) instead of falling unconscious, provided that it isn’t in sunlight or running water. If it can’t transform, it is destroyed.

While it has 0 hit points in mist form, it can’t revert to its vampire form, and it must reach its resting place within 2 hours or be destroyed. Once in its resting place, it reverts to its vampire form. It is then paralyzed until it regains at least 1 hit point. After spending 1 hour in its resting place with 0 hit points, it regains 1 hit point.

Strahd von Zarovich regains 10 Hit Points at the start of its turn. If Strahd von Zarovich takes acid or fire damage, this trait doesn’t function at the start of Strahd von Zarovich’s next turn. Strahd von Zarovich dies only if it starts its turn with 0 Hit Points and doesn’t Regenerate.

While all three members of a Strahd von Zarovich coven are within 30 feet of one another, they can each cast the following spells from the wizard’s spell list but must share the spell slots among themselves:

• 1st level (4 slots): identify, ray of sickness

• 2nd level (3 slots): hold person, locate object

• 3rd level (3 slots): bestow curse, counterspell, lightning bolt

• 4th level (3 slots): phantasmal killer, polymorph

• 5th level (2 slots): contact other plane, scrying

• 6th level (1 slot): eye bite

For casting these spells, each Strahd von Zarovich is a 12th-level spellcaster that uses Intelligence as her spellcasting ability. The spell save DC is 12 + Strahd von Zarovich’s Intelligence modifier, and the spell attack bonus is 4 + Strahd von Zarovich’s Intelligence modifier.

Strahd von Zarovich can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Strahd von Zarovich has the following flaws:

Forbiddance. Strahd von Zarovich can’t enter a residence without an invitation from one of the occupants.

Harmed by Running Water. Strahd von Zarovich takes 20 acid damage if it ends its turn in running water.

Stake to the Heart. If a piercing weapon made of wood is driven into Strahd von Zarovich’s heart while Strahd von Zarovich is incapacitated in its resting place, Strahd von Zarovich is paralyzed until the stake is removed.

Sunlight Hypersensitivity. Strahd von Zarovich takes 20 radiant damage when it starts its turn in sunlight. While in sunlight, it has disadvantage on attack rolls and ability checks.