Juri, Conniving Sadist

Whenever an opponent loses life, you may pay
{b}. If you do, choose one: Untap Juri, Conniving
Sadist, or put a +1/+1 counter on it. It gains
Menace until end of turn.
Remove a +1/+1 counter from Juri, Conniving
Sadist, {b}, {t}: Put a -1/-1 counter on target
creature. When that creature dies this turn,
target opponent loses 2 life.
"Aha ha ha! Life is short, especially yours!"