The Law

Ultimate - (You may only cast this card if you
control a creature named Lex, the Law Bringer.
Exile this spell once it resolves. When the
associated creature dies, if this card is in exile,
shuffle that creature and this card into your library.)
Destroy all creatures you don't control with a
+1/+1 or -1/-1 counter on them. They can't be
regenerated. You gain 2 life for each creature
destroyed this way.
No one escapes the law!