Dr. Victor Frankenstein

Relentless ---- Whenever this creature attacks, you
may sacrifice a creature. If you do, put a
knowledge counter on Dr. Victor Frankenstein.
{4}, {t}, Pay 4 life, remove 4 knowledge counters
from Dr. Victor Frankenstein: Search you library
for a card named Frankenstein's Monster and put
it onto the battlefield tapped, then shuffle.
{3}, {t}: Draw a card.