The Plague Doctor

When a player loses eight or more life in a turn, reveal this. When you do, Put three potion counters on it.
{3}: Put a potion counter on this.
Remove a potion counter from this: Choose one:
-Regenerate a creature without -1/-1 counters on
it. Next turn, put four -1/-1 counters on it.
-Target creature gets +2/-1 or -1/+2 until end of turn
-Target player gains 3 life.