Cursed Shinobi

Sagejutsu (At the beginning of combat on your turn,
this creature gets +1/+1 for each card type among
cards in your graveyard. If there are 4 or more card
types among cards in your graveyard put a +1/+1
counter on this creature.)
Menace
Whenever a creature dealt damage by Cursed
Shinobi dies, put the top 2 cards of your
library into your graveyard.
"Fear the twins of the sound ninja four."
—Orochimaru