Gambling Thief

Wither (This deals damage to creatures in the form of -1/-1 counters.)
If a +1/+1 or -1/-1 counter would be placed on
this creature, double the amount of counters
applied this way.
Madness {1}{b}{b} (If you discard this card,
discard it into exile. When you do, cast it for its
madness cost or put it into your graveyard.)