Sage, Touched by Plauge

Sage, Touched by Plague enters the battlefield
with 2 -1/-1 counters on her.
Whenever Sage, Touched by Plague attacks you
may put any number of -1/-1 counters from her
onto another creature.
{b}{g}: Put a -1/-1 counter on her.
{u}{b}, {t}: Draw a card for each creature with a
-1/-1 counter on it.