Fortress of the Moon

Fortress of the Moon enters tapped with 5 moon counters on it.
{t}:{c}
{t}:{r} or {g}. Fortress of the Moon deals 1 damage
to you.
Whenever you cast a werewolf spell, remove a
moon counter from Fortress of the Moon.
When the last moon counter is removed, search
your library for a werewolf creature card and put
it into play. Then shuffle your library.