Matt, Battlefield Tactician

Whenever a creature you controls dies while attacking, defending player looses 1 life.
Whenever a creature you control dies while blocking, you gain 1 life.
Whenever a creature you control dies, if it was sacrificed each opponent looses 1 life and you gain one life.
At the beginning of your end step if an opponent lost 4 or more life or you’ve gained 4 or more life, draw a card.