It slices away the most precious memories first, then the mundane, until all that remains is blank, formless fear.

The Mindskinner

The Mindskinner can't be blocked.
If a source you control would deal damage to an opponent, prevent that damage and each opponent mills that many cards.

Duskmourn: House of Horror

Duskmourn: House of Horror Promos

If you somehow control more than one of The Mindskinner, the multiple replacement effects will have no effect. Damage dealt to an opponent by a source you control will be replaced only once with that opponent milling that many cards.