Bloodgift Demon

Flying
At the beginning of your upkeep, target player draws a card and loses 1 life.

Master of the Feast

Flying
At the beginning of your upkeep, each opponent draws a card.

Liliana's Contract

When Liliana's Contract enters, you draw four cards and you lose 4 life.
At the beginning of your upkeep, if you control four or more Demons with different names, you win the game.

Dread Cacodemon

When Dread Cacodemon enters, if you cast it from your hand, destroy all creatures your opponents control, then tap all other creatures you control.