Creeping Bloodsucker

At the beginning of your upkeep, Creeping Bloodsucker deals 1 damage to each opponent. You gain life equal to the damage dealt this way.

Shepherd of Rot

{T}: Each player loses 1 life for each Zombie on the battlefield.

Loyal Subordinate

Menace (This creature can't be blocked except by two or more creatures.)
Lieutenant — At the beginning of combat on your turn, if you control your commander, each opponent loses 3 life.

Dogged Pursuit

At the beginning of your end step, each opponent loses 1 life and you gain 1 life.