The Lost Caverns of Ixalan

Mephitic Draught | Artifact | | When Mephitic Draught enters the battlefield or is put into a graveyard from the battlefield, you draw a card and you lose 1 life. | Lauren K. Cannon

Tithing Blade // Consuming Sepulcher | Artifact // Artifact | | When Tithing Blade enters, each opponent sacrifices a creature. Craft with creature {4}{B} ({4}{B}, Exile this artifact, Exile a creature you control or a creature card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) // At the beginning of your upkeep, each opponent loses 1 life and you gain 1 life. | Michael Walsh