Tithing Blade // Consuming Sepulcher

(1) (B) 

When Tithing Blade enters the battlefield, 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.)

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At the beginning of your upkeep, each opponent loses 1 life and you gain 1 life. 

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