Artemis, Master of the Hunt

Trample. When a creature enters the battlefield, put a +1/+1 counter on each creature you control. As long as Artemis, Master of the Hunt has a power greater than sixteen, on your upkeep gain life equal to your life divided by 2 rounded up.
{x}{w}{g}: Create X 5/1 Wolves.
"My wolves will kill you quicker"