Visha, the Nosferatu

As an additional cost, you may sacrifice X permanents. If you do, you and each opponent get X poison counters, where X the number of permanents sacrificed.
Deathtouch, First Strike, Lifelink
If Visha, the Nosferatu would be put into the graveyard or exile from anywhere, shuffle Visha, the Nosferatu and all cards in your graveyard and in exile into their owner's library.