Legendary Creature — Mouse Knight
Haste
Whenever
Arthur
and
at
least
one
other
creature
attack,
look
at
the
top
six
cards
of
your
library.
You
may
put
a
creature
card
from
among
them
onto
the
battlefield
tapped
and
attacking.
Put
the
rest
on
the
bottom
of
your
library
in
a
random
order.
Return
that
creature
to
its
owner's
hand
at
end
of
combat.
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