Blind Gunman

{3}, {t}: Starting with you, each player chooses a
creature or planeswalker, excluding this card,
numbering them one to six as you go until six
targets have been selected, then you may roll up
to six dice and destroy each permanent that
correlates to a number rolled. For each
permanent destroyed this way, lose 3 life (There is
no limit to the number of times a card can be targeted)
Whenever a creature an opponent controls dies,
put a +1/+1 counter on this creature.