Artifact
This
artifact
enters
tapped.
,
,
Sacrifice
this
artifact:
Choose
target
player.
At
the
beginning
of
the
next
end
step,
exchange
life
totals
with
that
player,
exchange
control
of
all
permanents
you
and
that
player
control,
and
exchange
cards
in
your
hands,
cards
in
your
libraries,
and
cards
in
your
graveyards.
