Mephitic Draught

The draw fires twice: once when the artifact enters, and again when it hits the graveyard from the battlefield. That double trigger is the entire point, and it turns what looks like a slow cantrip into a sacrifice deck's favorite currency. Something that replaces itself on the way in and once more on the way out is exactly what an aristocrats shell wants to feed to a sacrifice outlet: each throw nets a card while shaving a life, and that incidental drain slots cleanly into the payoffs those decks are already assembling. The life loss keeps the loop from being free, but it also feeds the same engine, converting your own attrition into resources. Being a black artifact rather than a colorless one lets it count toward black's artifact-matters lines while leaning on the color's long habit of paying life for cards; it also survives its own death, sitting in the graveyard as an asset for artifact-recursion effects. Cheap black artifacts that launder incidental sacrifice into card advantage go back a long way, but most of them reward you at only one end of their life cycle. This one collects at both, which is why the sacrifice-outlet pilot treats it less as a card to cast and more as a token to spend.