Enchantment
When
this
enchantment
enters,
exile
all
creatures
you
control.
Then
create
that
many
5/5
red
Dragon
creature
tokens
with
flying.
When
this
enchantment
leaves
the
battlefield,
sacrifice
all
Dragons
you
control.
Then
return
the
exiled
cards
to
the
battlefield
under
your
control.