Silas Crump, Mansion Caretaker

When Silas Crump enters the battlefield, create a
1/1 Hound Coward creature token.
{b}, {t}: Put target creature card from your
graveyard on top of your library.
Whenever an Undead creature enters the battlefield, untap Silas Crump. (Zombies,
Skeletons, Spirits, Wraiths, Horrors, Specters, and Vampires are Undead.)