Xander the Storm

Double strike, reach, vigilance
When Xander the Storm enters the battlefield,
choose a creature type. Whenever he is attacking
or blocking, creatures of the chosen type that
your opponents control get -1/-1. Whenever a
creature of the chosen type dies, put a +1/+1
counter on Xander the Storm.
{3}{w}, {t}: Xander the Storm deals 2 damage to
each creature without flying that your opponent
controls.