Heretic, the Antithesis

Whenever Heretic attacks, each opponent may
pay 3 life. If an opponent doesn't, search your
deck for a Dragon or Zombie creature card,
put it into your hand, then shuffle your library.
Whenever Heretic blocks a creature, each
opponent may pay 3 life. If an opponent
doesn't, you may put a Dragon or Zombie
creature card from your hand onto the
battlefield that is blocking that creature.