Remus Lupin

Whenever this creature enters the battlefield or transforms into Remus Lupin, put two moon counters on it and draw a card.
Bravery: As long as you control at least two
Students and/or Teachers, Remus Lupin gets
trample and +2/+1.
At the beginning of your end step, remove a
moon counter from Remus Lupin. If you can't, transform Remus Lupin.