Glass Avenger

Damage is dealt to Glass Avenger in the form of
-1/-1 counters instead of normal damage.
{w}, {t}: Remove a -1/-1 counter from Glass
Avenger.
{u}, {t}: Draw a number of cards equal to the
number of -1/-1 counters on Glass Avenger.
{r}, {t}: Deal damage to any target equal to the
number of -1/-1 counters on Glass Avenger.
{g}, {t}: Gain life equal to the number of -1/-1
counters on Glass Avenger.