Ra's Al Ghul, Demon's Head

First strike, deathtouch
As long as you control an artifact named
The Lazarus Pit, Ra's Al Ghul has persist
Whenever a creature with a -1/-1 counter on
it dies, you gain 1 life and draw a card
{b}{b}, pay 2 life: put a -1/-1 counter on
target creature or remove a -1/-1 counter
from target creature