Instant
Choose
one
—
•
Target
player
mills
four
cards.
•
Choose
a
land
type
and
a
basic
land
type.
Each
land
of
the
first
chosen
type
becomes
the
second
chosen
type
until
end
of
turn.
•
Target
artifact
phases
out.
(While
it's
phased
out,
it's
treated
as
though
it
doesn't
exist.
It
phases
in
before
its
controller
untaps
during
their
next
untap
step.)