Vile Entomber is a uncommon Creature — Zombie Warlock card from Foundations (FDN), collector number 616. Current market price: $0.25, TCGplayer market prices via Scryfall.
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) When this creature enters, search your library for a card, put that card into your graveyard, then shuffle.