SCARY DARK ALTAR!!!

Draft SCARY DARK ALTAR!!! face up.
Whenever you draft a card that has the words "sacrifice," "destroy," and/or "die(s)" in its text box, you may reveal it and remove it from the draft. If you do, put an OH NO!!! counter on SCARY DARK ALTAR!!!.
{b}{b}, {t}, Sacrifice a creature: Target opponent loses X life, you gain X life, and you draw half X cards, where X is half the number of OH NO!!! counters on SCARY DARK ALTAR!!!.