Sorcery
Convoke
(Your
creatures
can
help
cast
this
spell.
Each
creature
you
tap
while
casting
this
spell
pays
for
or
one
mana
of
that
creature's
color.)
Exile
all
creatures
except
those
that
share
a
creature
type
with
a
creature
that
convoked
this
spell,
all
artifacts,
and
all
enchantments.
