Instant
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.)
Target
creature
gains
indestructible
until
end
of
turn.
(Damage
and
effects
that
say
"destroy"
don't
destroy
it.)