Faebel, Reckless Aristocrat

When Faebel enters the battlefield you may
sacrifice a creature. If you do, add {b}{b}.
{r}{t}, Sacrifice an artifact: Draw a card then discard.
{1}{r}{w}{t}, Exile a creature and an artifact from
your graveyard: Create a 4/4 legendary golem
artifact creature token named Living Altar. It
gains, "Sacrifice a creature: Add {2}. {ut}: Return
target creature from your graveyard to
your hand."