Life As We Know It

You gain life equal to the number of creatures on
the battlefield.
Creatures you control get +0/+X, where X is
your opponents life total.
Put a lifelink and vigilance counter on all white permanents, and a +1/+1 counter on all other creatures. Exile Life As We Know It.
We need to learn to appreciate all things to truly live.
-Rillint, Searcher of Dawn