Beast of Westlam Woods

At the beginning of your upkeep,
sacrifice a creature. You gain life equal to that creature's toughness.
{g}{b}: Beast of Westlam Woods gets +2/+2 and
cannot be attacked by creatures with lesser power.
"The woods are becoming increasingly dangerous.
Enter if you must, but know you are prey to greater
unspoken dangers." --Grete, cathar apostate