Lukara Von Azera

Whenever another creature you control dies, you
lose 1 life.
{3}{u}{b}: Amass X, where X is the amount of life
you've lost this turn. (Put a +1/+1 counter on an
Army you control. If you don't control one, create a
0/0 black Zombie Army creature token first.)
"Kneel and obey, or shamble and serve."