Cruel Ultimatum

Target opponent sacrifices a creature, discards
three cards, then loses 5 life. You return a
creature card from your graveyard to your hand,
draw three cards, then gain 5 life.
"Speak the words of Lorgar and you shall live forever
in the glory of Chaos. Speak them not and every one
of you shall die today."
-Word Bearers' Ultimatum to Moegh IV