Wagner, Cursed Hunter

Other Wolves and Werewolves you control gain
+1/+1 and Trample.
Whenever a creature you control transforms, put
a +1/+1 counter on it. Draw a card for each
counter on the transformed permanent, then
discard a card.
At the beginning of each upkeep, if no spells were
cast last turn, transform Wagner, Cursed Hunter.