Unbreakable Formation

Creatures you control gain indestructible until
end of turn.
Addendum - If you cast this spell during your
main phase, put a +1/+1 counter on each of
those creatures and they gain vigilance until
end of turn.
But behold, to my great joy, there had not one soul of
them fallen to the earth; yea, and they had fought as
if with the strength of God.
(Alma 56:56)