Hat of Vermin

This hat has 3 charges. While holding the hat,
you can use an action to expend 1 of its charges
and speak a command word that summons your
choice of a hat, a frog, or a rat . The summoned
creature magically appears in the hat and tries
to get away from you as quickly as possible. The
creature is neither friendly nor hostile, and it
isn't under your control. It behaves as an
ordinary creature of its kind and disappears
after 1 hour or when it drops to 0 hit points.
The hat regains all expended ch