This lethal two-card execution relies on a devastating synergy between drawing deep and doubling pain. When you cast Peer into the Abyss targeting your opponent, they are forced to draw half their library while simultaneously losing half of their life total. Ordinarily, this leaves them battered but breathing, but the static presence of Bloodletter of Aclazotz completely breaks the math by doubling any life your opponents lose during your turn. Because the life loss from Peer into the Abyss is doubled, the targeted player instantly loses at least their entire remaining life total in one fell swoop, sending them straight to zero and winning you the game on the spot.