Woodland Tyrant

Deathtouch, Trample

Whenever Woodland Tyrant deals combat damage to a player, put a -1/-1 counter on it
for each creature that blocked it this turn.
Whenever Woodland Tyrant blocks, put a +1/+1 counter on it for each creature attacking this turn.
Whenever Woodland Tyrant dies, put it onto the bottom of owner's library and shuffle.