Masquerade Bandit

When Masquerade Bandit enters the battlefield,
choose a creature type. Masquerade Bandit is
the chosen creature type in addition to its
other types.
Whenever a creature an opponent controls with
the chosen type attacks, put a quest counter on
Masquerade Bandit. Then, if there are 3 quest
counters on it, exile Masquerade Bandit,
create 3 Treasure Tokens and draw 3 cards.