Pernicies, Archangel of Ruin

Flying, First Strike
Pernicies, Archangel of Ruin enters the battlefield
with a ruin counter on it if it was cast from your
hand or the command zone.
Whenever Pernicies, Archangel of Ruin enters the battlfield or attacks, if it has a ruin counter, choose
a permanant type, destroy each other permanant of
the chosen type.