Destructive Omnicient

You may play cards from the top of your
library. (You do not look at the top of your
library. If you cannot cast a spell this way, put
it into your graveyard. You must cast it if
possible.) When you cast a spell from the
top of your library, you may pay
{p/w}{p/w}{p/w}{p/w}. If you do, name a counter. Put
one of that type of counter on target
nonland permanent.